To be third-wheeled is to be intentionally left out of activities as part of a friend group. If you're third-wheeled, you're most definitely the convenience friend. They'll make you desperate to hang out, but never actually include you in anything. You can expect to be asked to hang out only if nobody else wants to.

If you notice you're being third-wheeled, it's probably a toxic friendship and you should get out of there.

A person who feels left out by a couple or a pair of besties.

Someone out of a trio whom is seemingly the least relevant.

A person who hangs out with two other people. The two other people are closer to each other than the "Third Wheel". People generally feel awkward when the third wheel mentions how much it sucks to be the first wheel (They actually normally get mad).

to follow or tag along with a couple

One who deters the socialization of a couple, perhaps when being invited out of pitty or through a feeling of duty. This person may be eased into the situation by being allowed to stay in an envirnment he or she has become accustomed to (perhaps a kitchen, where the third wheel can bake cookies for the couple.) The third wheel may feel uncomfortable about watching the couple canoodle on his her her sofa, but none of this is taken into consideration.

One who Google's the words "third" and "wheel" (together) after being named such.

SEE ALSO: Forever Alone