1. To win in a fight by being louder, more obnoxious and more annoying than your opponent. May be used in douchebaggery.
2. To have a longer penis than your opponent.
1. Remember when Tom ate 8 hotdogs in a row and you only managed two, then didn't even burp afterwards? You were so outcocked, man!
2. He was standing at the urinal next to mine and I felt rather outcocked.