A boy/girl who is good enough to hook up with but you would never make your boyfriend/girlfriend.

-You just hook up and never actually get to know the poor thing. And if it ever wanted to get to know you, you wouldn't give it a chance because it's the underdog.
underdog: that hook up was amazing, wanna date me?
trainer: uh.. no. i just like making out with you.
(the trainer would not date the underdog because for whatever reason the underdog is not bf/gf material. but it is acceptable to make out with it.)
by underdogtrainer. March 17, 2011
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when you get a boner and tuck it between your legs so it sticks out the bottom then you masterbate
hey vijay what you doing tonight´...
underdogging it ofcourse
ahh sweet me too
by jon demurs May 16, 2007
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The act of one individual scooting across another individuals face as if to clear their glands
I think the rash on my face is from being underdogged by Sally last night.
by NNRMC CHIII June 21, 2020
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Siding with the underdog in a situation or debate simply because they are the underdog and regardless of whether or not you agree with them.

This term originates from the book 'Generation X' by Douglas Coupland.
Underdog: Abortions should be illegal.
Person A: Yeh I totally agree.
Person B: Hey man, quit underdogging!
by Alice842 March 9, 2011
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One that is expected to lose a contest or struggle

One that is at a disadvantage.
Dude 1 : Do you think that man who is 3ft 40lbs can beat up Mike Tyson ?

Guy 2: Hell no you dumbass. That midget's got his legs cut off and he's blind in one eye. He's a real underdog if I ever saw one.

Dude 1: Why don't you just goto hell.

Guy 2: God you're a bitch...
by Jarba January 13, 2006
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60's cartoon of a superdog. Always spoke in rhymes. Constantly had to save his loved Polly Purebread from archenemy Simon Barr Sinister.
Person 1:Look, in the sky, it's a bird
Person 2:It's a Plane
Person 3:It's a frog......
Person 1&2:A frog?

Underdog: Nor bird, nor plane, nor even frog......just little ole me ....UNDERDOG!!! HIP HIP AND AWAY!!
by Ryan August 1, 2004
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Sexually pleasurable act of a woman fondling a man's testicles/scrotum during intercourse in the doggy-style position.
We were doing doggie, hips smacking her ass balls swingin', when she reached back and underdogged me! Almost exploded right then and there....
by Surly T January 28, 2010
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