The Bass player from nefarious is a total poser! Saw him in a hoodie and the blowfish cover band. Now he plays in a metal band. There’s a poser in the punch bowl!
A less exaggerated form of the T-Pose, Commonly memed by TF2 users since most of the characters can be bugged into an A-pose with glitches. Most source engine games use A-poses as opposed to T-poses
A-Posers in TF2 are friendlies who harass the enemy team by surrounding the player in question and spamming quotes.
A Game. Randomly in the day shout out "Strike A Pose!" and whoever doesn't strike a pose loses and must have intercourse with a Flu infected guy. It can also be tweaked for specific poses. Maybe for holidays!