when someome hears a group of people laughing and trys to laugh with them but has no clue what they are laughing about.
1. bob- did u see john today? he's so gay!

sam- yea!! hahaha

bob- hahahaa

john(walking up)- hahaha that was a good one guys!!

bob- quit bandwagon laughing john..
by t-dogge February 22, 2010
Get the bandwagon laughing mug.