Name for somebody who deliberately takes photos with their drink in their hand, most common in teenagers who want to show that they were allowed to drink and getting drunk. Acting like its really cool to be off your face.
Teen 1: Pfft! Omg Dean is such a Poserholic look at him with two beers in each hand, bet he thinks hes the shit HAHA!
Teen 2: I'd say i was at the party and that was my freaking drink he was holding!