popping your collar is a gesture meaning that you a pimp, E-40 started
popin his collar first. you do this when your dancing, takin a picture or whenever you feelin fly. you could also cogratulate a playa by poppin his collar, like when he's
dancin with 2 dimez.
your walking by a homie at the club and you see him
dancin with a tight
breezy, so you pop his collar thus congratulatin
a playa for his skills. you could also say "pop your collar, mayne" while poppin his collar.