1 definition by Third Testicle

Top Definition
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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