Cockblockbro

A bro who is there to cockblock some dick for you. you dont cockblock him yourself cos otherwise the girl would think you are a wanker so you get your cockblockbro on the case

Guy 1: hey dude, there is some dick who is hitting on this girl i like. can you do the necassaries?
cockblockbro: never fear. your cockblockbro is here. i will cockblock the shit out of that guy