Third Banana

Being the third best. Similar to “playing second fiddle
by LeSabre1993 November 28, 2019
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Perma-third

When your best friend or roommate gets a significant other. A reference to being a third wheel - all the time.
My roommate just got a boyfriend, and now I'm stuck being perma-third.
by LizzieDoob521 November 11, 2011
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the third leg

The dick between your legs
by Bory_cory October 24, 2017
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Third Testicling

For those who like to add crude meaning to an otherwise unoffensive term - "third wheeling"

Just like a pair of wheels, a third testicle will stand out, and should not be around(in most cases)
a) Oi, Pete, whose the third testicle?

b) Bobo hooked up with some chick, so i started third testicling
by Third Testicle August 03, 2009
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third responder

Refers to the third man in a gang bang.
Jimmy it's your turn to throw that hoe a good fuckin. You are the third responder. Now get your ass in there and lay some pipe!
by JoeyBomm April 10, 2020
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third-rounder

An ugly person, can be male or female. In reference to MMA (mixed martial arts) fights, which are typically scheduled for 3 five minute rounds. If the fight makes it to a decision, the fighters faces are often bloody and swollen.
Fred: I saw John last night at the bar.
Mick: Yeah did you guys throw some back?
Fred: Nah, he was already drunk and trying to hook up with a third-rounder. I think he took her home.
by Lambresi March 17, 2008
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