Definitions by king shit

smells 

giving off an aroma

I just farted and it smells like boiled cabbage.

smells by King Shit January 16, 2003

Silent but deadly 

A fart that is not heard, but smells so horrid that it could kill; also: Silent but violent, SBD

Your farts aren't that bad when compared to Grandpappie's ol' silent but deadlies.

Silent but deadly by King Shit January 16, 2003