Third Wheel

A person who can ruin a weekend, picnic, concert, sporting event, or any other kind of activity that you may have planned with your significant other by inviting themselves or guilting you into inviting them. These people are commonly refereed to as a Third Wheel. Third Wheeling is not cool and is frowned upon.

Dude! She's such a Third Wheel, I cant believe she tried to go to prom with them.

by Boogie44 October 1, 2010

third plane

A lack of success in something, or an unsuccessful attempt at doing something. Something that falls short of what is required or expected.

referring to the third plane used in the September 11th attacks

see also: first plane and second plane

He wants to pass the test, but is worried he will third plane.

by Helbard December 8, 2003

spending a third

having sex

Nick was spending a third with Daisy.

by ireallydontknow12 September 21, 2013

the third of december

Give someone your sweater (heather by conan gray)

I still remember, the third of december, me in your sweater, you said it looked better on me than it did you

by i wish i was heather December 3, 2022

stuck on the third

When you're stuck on third base or can't get past.

"Hey man I'm stuck on the third. Can u give me some tips?"

by I'm_invisible September 19, 2015

Third Nostril

A hole in the septum (the cartilage divider between both halves of the nose) that can result from heavy cocaine use.

Ask Rob to show you his third nostril. He can put a rolled up kleenex in one side and pull it out the other, and floss it back and forth. It's nasty as shit.

by Buster the Cat May 3, 2011

Third twin

The backup twin

"You must be the third twin of the family"

by MShadow2016 August 12, 2016