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shifty, schemeing person that will do whatever they need to to escape whatever they fear in the moment
Listin up you little fucass weasel, if you lie to me again -- you are just gettin' yosef' another slap
by jak February 13, 2003
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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2
One who is particularly cunning, conniving, shifty, sneaky, scheming and down right sly. Weasels are known for their ability to adapt to any situation and to manipulate it to suit their own weasel ways. In other words, my brother Beau.

When used in regard to a female weasel, "weaselette" should be used.

Also used as a verb (ie. to weasel) and as an adjective (eg. weaselish)
"Tell me of your latest weaselish escapades, brother"
"Beau, you are a true weasel!"
"How are you going to weasel your way out of this one?"
"Beware of the weasel"
"Do teach me in the ways of the weasel"
by Weaselette, sister of Weasel October 26, 2008
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3
A cunning, sneaky person. On internet forums they are often a liar, fake or poser. Will try to extract information from you to share with others and / or use it against you. Uses shiftiness to evade an obligation, commitment or duty. They will make promises then renege on them. 'Weasel' is very often followed by 'out' as in 'weasel out'.
"Watch her try to weasel out of that one."

"What a fucking weasel that lying bitch is."

"Every insurance company has a weasel clause so they don't have to pay their claim."
by Grund1e September 01, 2006
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4
A weasel is a furry little rodent, who tends to be cute and murder birds, like chicken: 2 in 1
Very agile and mobile creature, who can slip through tight spots and eat your eggs, if you aren't watching.

Weasel can also be a description for someone clever or menacing.

Some cartoon or game characters are weasels, where they have sly, slim, clever and sneaky behaviors and they have a nice smirk or a grin on their face. Unlike the real life counterparts, they usually don't eat eggs nor murder birds in cartoons though for some fucked up reason.
After 'someone' stole my eggs from the fridge I yelled out: "The weasel stole the eggs, what I just mugged from someone!"
When someone rips or pulls you off, you probably would think: "What a weasel!"
by Möszick April 19, 2013
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5
a complete asshole who gets out of everything and thinks he will always get out of everything yet everyone who knows him knows he will one day get caught
jon is a fucking weasel!!
by Jason D April 18, 2006
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6
best animals ever, they are much better than ferrets
Lily and Esmé are weasels, they are better than everyone
by weasela December 30, 2016
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