Definitions by T diesel!

Diesel 

(Verb.) To workout in an extreme fashion (usually having to do with MMA) or to overcome an opponent while using skill and technique as opposed to brute force.

"Dood, that diesel sesh yesterday was killer."

"Rampage is gonna diesel that fool in his next fight."

"Hey bro are you down to diesel today?"

Diesel by T diesel! May 27, 2009