a person awkardly there in a situation with a couple.
sarah and joe were fooling around behind the building and maggie was with them. she was so awkward, being the 3rd wheel.

laura: were you the 3rd wheel?
maggie: yeah i hate it. i always get stuck with that when they are being so couple-y.
by used and thrown away December 6, 2009
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an extra person in a social venue, especially one tha interferes or gets in the way
Go away! We don't want a 3rd wheel with us.
by The Return of Light Joker October 20, 2009
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where you hang out with a girl and boy in a relationship who otoaly ignore you and are all over themselfs, left out and nobody to talk to.
Person: can i hang with you?
Couple: yeah sure.
(sit together with backs to single persons face.)
Person: never mind actually, i dont like 3rd wheeling.
by bigbm November 12, 2013
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When two people are having a conversation and you don't really contribute anything, you just kind of feed off of it. Sometimes even through eavesdropping.
Guy 1: Did you see the new marvel movie?
Guy 2: Yeah that was pretty sick!
3rd wheel: Hey me too!

Guy 1 and guy 2: -_- dude stop convo 3rd wheeling
by Karab okama August 11, 2019
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Similar to 3rd wheeling but the only reason you don't have date of your own is that you're a fat ass thus counting as two people.
Boyfriend (To Girlfriend): Why is that fat girl following us around all the time?

Girlfriend (To Boyfriend): I'm sorry she's 3rd and 4th Wheeling but I felt bad that she was alone.
by Ike Nwamgbe October 23, 2011
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