A patch often found on the colors of a 1%er meaning they have "Taken Care" of club business. Usually attributed to killing for the club.
"I Took Care of Business"
See that scooter-bum with the ITCB patch? Don't fuck with him or he'll kill you.
Don't ever rat-fuck the colors of anybody wearing an ITCOB / ITCB patch, it means they killed a motherfucker.