Dickbrain
A man who thinks with his penis instead of his brain. In other words, his actions aren't rational and decisions are totally driven by getting laid.
He has been paying his girlfriend's cable bill so he has an excuse to go over there and spend time with her in hopes of getting laid.. What a dickbrain.
Dickbrains
Someone who is a complete Idiot
Well you fucked that up Dickbrains see shit for brains
dickbrain
Someone who passes off their/their acquaintance's name as a word and defines it in a way suitable to them on Urban Dictionary
The sheer amount of dickbrains on Urban Dictionary is truly saddening.