A person within your friendship group who acts like a two-faced little rat the majority of the time, but still manages to stay in said friendship group by the skin of his teeth despite the weasel-like behavior.
Hey, you know that guy that was in the CFNM porno? You know, the one that got sucked by a bloke? He's acting like a right little fuck-weasel again.
by BuBurnley66 July 12, 2017

dick; penis. the infamous appendage. mammalian version of trouser snake.
a weasel-like protuberance used for-- what it says.
a weasel-like protuberance used for-- what it says.
by Sadsaque November 28, 2015

by Screaming Banshee Original April 6, 2016

by dirtyjack83 February 6, 2014

"Fucking weasel" is an insult that describes someone as sneaky, untrustworthy, or insincere, similar to a "sneaky snake". The term draws from the real weasel's predatory behavior, such as stealing from hen houses, which historically gave the animal a reputation for craftiness and slyness.
by kam75xx August 22, 2025
