The act of being a third wheel with a couple, and the couple gets into an argument in front of you and you are left feeling weird.
Friend #1: I went out with Jimmy and Sarah last night
Friend #2: Oh Cool! How was it.
Friend #1: Dude they fought all night.
Friend #2: that sucks
Friend #1: I know dude i had third feels all night
by bigspence October 5, 2018
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