Term commonly used in the Maritime provinces of Canada to describe the male genitals in a state of semi-arousal. Generally occurs as a pre-cursor to a full-out hard on, or after ejaculation, when you're hanging long and lazy.
guy 1: Dude, that shootergirl's fuckin hot!

guy 2: Yeah man, I've already got a chub on... if she comes any closer I'm gonna get a hard on

guy 1: Already there man.
by Pervertical_line_test October 29, 2008
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The cute way of calling someone fat; a cute, chubby person
Miitakun looks like a chub chub. xD
by Akatsuki October 21, 2006
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A penis that is any where between semi-erect and erect.
see chub
Dude, Drew's mom is so hot, I get a chub-chub just thinking about her.
by "Pancakes" Primrose October 12, 2007
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n: 1-A fat bitch that you use to do shit for you.
2-Someone who is below you.
"Aye yo!, CHUB-CHUB! get mah kite!!"
by Alberto R. June 5, 2007
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not all that fat of a girl but with a cute face
Guy 1- "Dude did You fuck her?" Guy 2 "what can i say i love them chub chub"
by Loserx December 1, 2009
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When a guy is turned on, but not quite ready to grab a couch pillow to awkwardly conceal his arousal- an erection that is safe for public consumption- i.e. not pitching a tent, but beginning to feel aroused.
When that girl with that fine ass bent over right in front of me to adjust the spoke nipples on her Fuji bicycle, I chubbed up a bit.
by Spinning Assassin April 16, 2010
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Getting an erection!

When the male organ becomes enlarged due to sexual arousal or physical stimulation.
I swear when that girl was grinding on me in the club, I was chubbing the whole time!
by Cappy1 January 15, 2017
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