Top definition
Being the biggest boss seen thus far. As referred to in the hit single "The Boss", by the biggest boss you've seen thus far, Rick "The Boss" Ross.

Also, something that is just downright boss. In other words, something that is freakin' amazing.
When you see a person with a fresh line-up, fresh outfit, who is about to have the parkin' lot on smash, plus, he/she has a chevy with a 4-5-4 in the hood that has 125 on the dash, you say: "That's MAD BOSS."

Danial:I have a huge penis. Over a foot long!
Zuhaib:That's mad boss.
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