Definitions by Nate-an

Bunner 

Someone who is a buzz killer. When everyone is getting baked at a party and someone volunteers to get carrot juice, they are a bunner.

"dude let's go beat up that nerd after school"
"sweet man let's to it!"
" alright don't tell joe though. He'll be a total bunner about it"

Bunner by Nate-an March 2, 2009