Put on excess weight. Become overweight.
"Mark has chubbed out. He was mad skinny before."
by D? C.I.? August 11, 2008
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A Term
Where a male grows a (half-flaccid & half-erect) penis when a female accidentally brushes her ass cheeks against a man's crotch in the workplace.
Yeah dude, I bumped into Ashley in the hall and her ass rub against my dick.

I had a "Chub-out".
by MileDriver January 10, 2014
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To eat uncontrollably at home for pleasure.
I cant wait to chub out on my day off
by xmenoloks2 August 15, 2008
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Eating more than you need to. Kind of like pigging out.
I could've had a salad, but decided to chub it out and go with a burger + fries instead.
by The Farticle Theory June 6, 2016
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Upon a disagreement between two men. Its when two guys stick penis tips together, the first guy who gets a chub loses and is gay
Man 1: Football is the best sport in the world.

Man 2: No way, hockey is way better.

Man 1: I challenge you to chub it out.

Man 2: I accept.

(Chub out commences and Man 1 produces a slight boner first.)

Therefore Man 1 is wrong and is also gay.
by man 3 September 16, 2013
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Sneaking in a cheeky knuckle shuffle in an inappropriate, and semi-public location.
Jack sneaked away to chub one out in the confession booth during the Lenten service.
by Naughty Loulou March 9, 2023
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