Green Day Mosh Pit is used to describe something that looks funny and cool, but in reality is lame and unfun.
Guy 1: Hey dude let's go to Sharon's party
Guy 2: That's a Green Day Mosh Pit right there, her little brother is always there.
Guy 2: That's a Green Day Mosh Pit right there, her little brother is always there.
by Senor Quackers March 15, 2021