the word 'fleeb' can be used in many different ways. It can be used to describe someone as incredibly awesome and amazing or it can just be one of those words people say for no apparent reason.
To describe someone as incredibly awesome and awesome: "That's so FLEEB!!!"

"You're so fleeb!"

Just saying 'fleeb' for no apparent reason:
"FLEEB!!"

"fleeb fairy!"
by whatthemeaningoflife February 12, 2013

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Top Definition
A complete idiot.
Your mother is a total fleeb.
by Allie November 19, 2003

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A small, jelly creature that is rubbed to produce fleeb juice, which is an essential ingredient in plumbuses, gropples, and many other household items.
The fleeb is then rubbed, so we can get the fleeb juice
via giphy
by bluekid3 May 24, 2017

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A person who goes out of their way to cause trouble, generally in the form of spam.

Fleeb usually travel in packs and are thought to be bottom-feeders.
Did you see that guy's posts on the RMB? He's such a fleeb.
by NotFleebian October 16, 2016

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a word that didn't quite make it as a synonym for tool or douche bag mainly for the fact that the people who say it are tools themselves.
Wow, what a fleeb
by lawlwotevr January 04, 2009

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In the Lego community, a space creature that chews through metal, etc. Resembles a scorpion with a shallow dome on it's back.
"Look out! A fleeb! Don't let it chew up the ship engi- *BOOM!*
...
Too late."
by Shadowviking August 24, 2007

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Fleebing is an act of completely inhaling anything, although mainly food.
Guy 1: That pizza was delicious.
Guy 2: I know, I totally fleebed it!
by Dolus January 03, 2012

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