Top Definition
That's awesome!!
Hey man, I'm going to go have a few drinks and then hit some surf!
-that's boss!!
by Supyoyo October 18, 2015

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Used as a way of saying something or someone is stupid, ridiculous, and gay. A form of replacing the word that's gay. When someone says "that's boss" they are referring to something or someone that they do not like
Paul: hey bernard!
Bernard: hey paul
Paul: whatchu doing?
Bernard: doing some Chemistry homework.
Paul: oh, that's boss dude.
Bernard: yea I know, it's so boss.
by Sloppybobtango March 22, 2010

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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