Definitions by MAdams1

Su 

A shortened version of the word suicidal. It is used as an exaggeration, not to be taken serious. Usually the word will be used as a complete overreaction to what actually happened.

"Im su the Cowboys lost."

"Im su I didn't get french fries with my burger."

"Im so su about going out to eat with him tonight"

Su by MAdams1 August 16, 2011