third wheeling is when you tag along with shawn mendes and camila cabello to the beach, to a restaurant and literally anywhere else. it WILL make you feel lonely and you WILL be third wheeling the whole time.
omg people at shawn's miami concert were totally third wheeling him and camila

did u see the pictures of them from the beach? his team was totally third wheeling them
by memeing July 30, 2019
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The odd one out. The person who always gets slobbered on while he/she watches their friends canoodle.
sarah c. is such a third wheel, lets go bang in front of her.
by *Destiny* December 3, 2008
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That one person that does not belong
No matter which way you figure it, if you're in a group of usually 3 people, theres always a third wheel:
2 Guys & 1 Girl = Usually 1 too many guys

2 Gay Guys & 1 Girl = Should never happen EVER

2 Girls & 1 Guy = 99% chance theres 1 too many guys, BUT THERES STILL A 1% chance of this turning into the best night of his life!
by Austindemolish March 7, 2011
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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 September 30, 2010
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It's like a schematic of 3 wheels about the moment socialization:

-Third Wheel: biggest one, which consist in a group of people whom are you fond of, but not being very intimate.

-Second Wheel: small and inside the Third Wheel. People that is priority of your attention.

-First Wheel: smaller and inside the Second Wheel. Consists in something/yourself (or both) that is automatically a main concern.
Usually, for the majority of these wheels are like this:

-Situation: going out with friends/family and bf(gf).

Third Wheel: your friends/family

Second Wheel: your bf(gf)

First Wheel: yourself/your beliefs/your pride/your ego

-Situation: going out with friends.

Third Wheel: most of your friends

Second Wheel: your best friend

First Wheel: yourself/your beliefs/your pride/your ego
by Azfargh September 19, 2012
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A friend without a partner who gets in the way and prevents couples from having the necessary time to socialize in private. Severe cases of third wheeling can cause major relationship problems for the couple they have attached to. A relationship parasite that feeds off your good intentions and destroys the host. Vampires that wear a smile and offer to 'help' but eventually turn out to have an agenda. Anybody happy to third wheel long term will usually turn out to be a bad friend.
will arrange nights out with one or other partner individually. generally refuses to recognise boundaries like giving a couple space, not constantly invading their home/life. Gets jealous or nasty when told to back off. causes trouble between couples but in a quiet way. Usually tries to make themselves necessary by doing the chores expected of either partner ie picking kids up from school, driving people around. The more they do the harder to remove them it will be. Third wheels are generally frowned upon, with good reason.
by Ernie Whoopass December 25, 2013
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