Any individual who intrudes or does not belong- in a conversation, at a social gathering, or anywhere else. First popularized by Malachai, of "Children of the Corn".
Friend 1: "Yo, who invited him? Who's that guy lurking in the corner?"

Friend 2: "I don't know who that interloper is, dude."
by J3553 November 6, 2007
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Jim: Hey did you play Interloper? It's my favorite chapter!
Tim: What the fuck Jim
by dakota724 November 10, 2021
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The friend that moves in on the guy who's talking to you at the bar. She thinks she is the cutest of the group, and therefores feels entitled to any man, attractive or not, particularly if he's talking to someone else.
That Nicole is such an interloper. She's talking to the guy that Krista likes while she's in the bathroom.
by sarahleigh 24 June 23, 2007
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Someone who is stupid/awkward and an unwanted meddler
He kept awkwardly reinserting himself into the conversation but it was clear the group identified him as nothing more than a loblolly interloper.
by MD girl 5 November 26, 2013
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An inanely stupid person whom intrudes on the privacy or property without permission.
get ur hands off my computer you vacuous
by Weird big nick from IT October 31, 2003
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Alien Interloper is Known for Their Humor and Characters Like Melay, Dexter, Scroopy The Mouse and Many Many More.
by SeatOG January 2, 2020
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