A person who sniffs toilet seats after other individuals have used said toilet.
C: Wow! That was an amazing poo I just had, I'm going to leave now.
E: *Enters stall*
E: *Bends down and inhales deeply*

(E is gumping the toilet.)
(E is a gumper)
by HiImAmyESIBULNSAC March 18, 2022
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A synonym of dip, the clump of smokeless tobacco one inserts into their lip when dipping
That gumper you have looks like a pig pong ball under your lip. That is one fat ass gumper
by Brodybrah January 8, 2010
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1. Just a total jerk.

2. Someone who just committed a foolish or stupid act and should therefore feel sheepish.

When one feels as though words describing douchebags or fools become boring and trite as they often do, the logical solution is to stay ahead of the curve by employing newly formed words, sometimes out of accident. Hence, "gumper".
1. Dude: I recently read that a 15 year old boy strangled his mother because she found his pot stash and was going to punish him.
Girl: Did she die?!?
Dude: I don't think so. But what a gump. Just a gumper.
Girl: You're a gumper.

2. Waitress: You have a good meal!
Guy Diner 1: You too!
(waitress leaves)
Guy Diner 2: "You too?" Are you kidding me? You're just a gumper, bro. A total gumpz. Watch out for the gump truck.
Guy Diner 1: Aww, come on Jerry, cut it out!
Guy Diner 2: GUMPSTER MCDUMPSTER!
Guy Diner 1: I feel sheepish.
by colgate123456789 March 20, 2009
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Another word to describe someone who is slow mentally.

Refers to someone with characteristics like the movie character Forrest Gump.
That kid is a true Gumper.
by Alimoons77 May 13, 2014
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(noun)
Someone who is "Gumpy", lengthy, tall, uncordinated kind of person.
One who's some what like a loser, or a dork.. somebody who falls alot, clumsy, etc.

Dooode, look at that guy over there, he's such a gumper yo'.
Yo' that basketball player sucks, he's a major gumper.
by dEMAR J* February 13, 2009
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He's not a full on Mong..just a bit "Forrest Gump"..or a Gumper.
by Ugleebugga September 20, 2010
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Gumper ; Is A person who gumps. which is a person whom will persuade by performing a sexual act, usually fellatio but not limited to, to acquire or gain something they need . Often placed in the same group as puddle sluts, drug whore but really quite different. The main difference is a gumper, trades sexual favors for other things besides drugs or substance, but more focused on trading for other services or granted access to something not normally accessible by the sexual favor giver. Gumpers are not addicts but more often a determined crafty type. Who has no shame using sexual allure to gain what they want. Generally a tactic used by females towards men in power. Who have morality issues.

submitted by LuvH8Luv
inspired by popular pop culture movie.

Forrest Gump when Forrest Gump's mother had sex with a superintendent of school district to grant Forrest Gump access into public school and not a special school for less fortunate.
In the PTA meeting held at the town hall a mob of parents held signs in protest and loud speaker saying "Mrs. Gump had sex with the right person to get her slow handicapped son into our public schools which created a distraction to all other children's learning." when interviewing another angry parent, the parent very frustrated in demeanor said, "She can't just gump the super-intendant for her boy to be placed into schools made for regular kids. She's done this before with parking tickets getting thrown out, to returning opened electronics that she obviously used and damaged. she gets away with everything by her gumper ways and now it seems she is gumping her way into our public school. "
by Luv H8 Luv April 11, 2022
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