Similar to on god, on bag is an affirmative phrase confirming what your or something someone else said.
“Hey wanna go to the movies later” Taylor Swift replies “On bag?”
by The slang September 10, 2019
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Steph: Dude, she's hot.
Mike: What can I say, she's a bag.
by mhknguyen April 19, 2009
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the male version of "on the rag" used to describe a dude who is in a foul, pissy or otherwise bitchy mood for no apparent reason.
Dude #1 - What's up with John? He's acting like such a frickin tool for no good reason.

Dude # 2 - I don't know what his deal is!

Dude # 1 - He must be "on the bag" the little fag!
by rinker November 5, 2009
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To go out, Be lovers, hook up, ect.
Tyler: Denise you bagging Bob?

Denise: You already know ~ Yesterday we made out :D

Or

Bob: Tyler, you tryna bag?

Tyler: Yesh but it's hard she likes someone else
by SirBagsAlot December 1, 2011
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"i'm bagged" or "i'm so bagged"
by Jason Johnson Fernandez March 5, 2008
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1. Noun. a white trash asshole uncle that shits in a bag.
2. Adj. a white trash asshole.
1. You aren't inviting Will-Bag to our reunion are you?
2. Dude, stop being a fucking Will-Bag
by cinco November 13, 2004
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