A term used after you fart to keep from getting punched. If fail to say before someone says "doornob" you get punched until you touch a doornob. Doornob can be called if a fart is heard or smelled.
Mullet Dude- I need someone to go back in time with me.
Some Guy- Will I need to bring my own weapons?
Mullet Dude- Yeah, I've only done this once before.
Some Guy- Oh.
Mullet Guy- Saftey is not guaranteed.