Phubbing refers to the act of ignoring one's immediate social interactions in favor of engaging with a smartphone, making it a prevalent behavior in today's digital age. While it is frequently associated with the concept of fear of missing out (FOMO), the current body of research presents conflicting evidence regarding the strength and consistency of this relationship. In May 2012, as part of a linguistic experiment by Macquarie Dictionary, the advertising agency behind the campaign, McCann, had invited a number of lexicographers, authors, and poets to coin a neologism to describe the behavior. The word "phubbing," a portmanteau of phone and snubbing, was first described by McCann Group Account Director Adrian Mills, who was working with David Astle. The term has appeared in media around the world and was popularized by the Stop Phubbing campaign created by McCann.

Despite its growing relevance, no standardized method exists to measure phubbing behaviors or their effects. Existing tools have been developed with limited attention to psychometric properties or broad applicability, creating challenges for advancing research in this area. To address these gaps, recent studies aim to create validated scales that capture the complex dimensions of phubbing, contributing to a more comprehensive understanding of its impact on social interactions and individual well-being.

Phubbing typically manifests in various social contexts where individuals prioritize their smartphones over face-to-face interactions, leading to a breakdown in meaningful communication. It has become increasingly common to observe groups of friends engrossed in their devices, couples at restaurants ignoring one another while staring at their screens, or families spending time together yet disconnected by their preoccupation with smartphones. This behavior is not confined to personal settings; it extends to workplaces, where professionals often divert their attention from colleagues to their devices. Over time, phubbing has evolved into a socially accepted norm, undermining the quality of interpersonal relationships and healthy communication.

Furthermore, the habitual nature of phubbing reinforces its cyclical impact: as individuals use their phones to escape stress or loneliness, they inadvertently weaken their relationships, leading to greater isolation and reliance on their devices. This pattern not only exacerbates psychological challenges such as anxiety and depression but also raises broader concerns about how technology shapes social norms and values. Addressing these issues requires a deeper understanding of the motivations behind phubbing and its effects on mental health and social connections. Efforts to mitigate phubbing's impact must balance the benefits of technology with the need for meaningful, face-to-face interactions to preserve the integrity of human relationships.

The pervasive design of app notifications, algorithms, and user interfaces plays a pivotal role in fostering phubbing behavior. These features are engineered to capture user attention, often at the expense of in-person interactions. Central to this dynamic is smart push technology, which delivers personalized, real-time updates to users. While this technology enhances convenience, it also amplifies Fear of Missing Out (FoMO), a psychological phenomenon defined as the anxiety of being excluded from rewarding experiences. By continuously pushing tailored content, apps entice users to engage compulsively, distracting them from their immediate social environment.

The timeliness of content delivery, a hallmark of push notifications, adds another layer of complexity. Constant updates induce information overload, leaving users overwhelmed yet compelled to stay updated. This creates a cognitive loop where users feel pressured to remain engaged, even at the cost of neglecting their physical surroundings. Over time, this cycle fosters a dependency on smartphones, making phubbing a habitual behavior.

Parental phubbing, the act of parents prioritizing smartphone use over engagement with their children, poses a significant threat to children's social-emotional development. This behavior disrupts parent-child interactions, often leading to feelings of neglect and reduced emotional connection for children.

A study by Liu et al. involving 726 adolescents aged 12–18 revealed that parental phubbing significantly disrupted the parent-child relationship, which in turn led to higher levels of mobile phone addiction. The study found that 51.45% of the adolescents experienced frequent parental phubbing, such as during mealtimes, which contributed to feelings of neglect and rejection. These interactions were linked to heightened rates of behavioral issues, including depression and aggression, with phubbing explaining 26% of the variance in problematic mobile phone use (β = 0.26, p < 0.001).