1. Past tense of fall in
2. A slang term used when someone takes too long to come back from the restroom
β€œWhen is (friend) coming back from the restroom”
β€œI think he fell in”
by Musicbuzzer1234 March 07, 2019
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Describes a girl you once loved when she goes psycho; Normally in a blink of an eye.
"That bitch be fellin"

"The moment we broke up she started fellin"

"She's fellin all over the place"
by BitchBeFellin December 18, 2013
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