A common condition where someone makes repeated grammatical errors, often followed by hysterical laughing and joking. The only cure for brain-weasels is to suffocate them by smothering the victim with a pillow.
Crap, you're infested with the BRAIN-WEASELS! Quick, smother him/her with a pillow.
*followed by a small footchase and a pillow smothering*
*followed by a small footchase and a pillow smothering*
by Noah February 1, 2005
Get the Brain-Weaselsmug. A phrase that comes from Troy on Community. It basically means "blew my mind", or a "glass shattering moment".
Annie: Did you know that someone who has already been born could live for 800+ years?
Troy: That's wrinkling my brain!
Troy: That's wrinkling my brain!
by Eolus October 18, 2011
Get the Wrinkling my brainmug. by Telephony April 16, 2015
Get the fry brain trainmug. A silly person; A dumbass.
by Ass MAster in the house March 24, 2009
Get the Boo Boo Brainmug. 
Relationship Tactic where you try and hook up and get a relationship with the person who just got out of a relationship. Sad people do this on a regular. These people are usually liked by many people, however when it comes to these terms, they are disliked for sloppy seconds.
by Conaill Long February 16, 2021
Get the The Wrinkle-Brain Movemug. The Final level in the 1991 Sega Genesis game, Sonic The Hedgehog. Since it's the last level in the game it will give a big middle finger and say "Go fuck yourself.".
by Life is just a joke XD July 6, 2018
Get the Scrap Brain Zonemug.