canseco

A paid informant. No one respects them, except tools. Used as verb or noun or because of lack of self-respect and/or trueness to the game.

Ronnie straight-out canseco-ed Sean and Dustin i.e. he is a straight punk-ass canseco bitch.

by the ocelot February 1, 2006

Canseco

Someone who does something wrong or against the rules for a long period of time and then quits and tells on others doing the same thing.

Adam: "Dude, both me and Dave took off 10 sick days last month! This month hes decided to be good about it and now hes ratting on me for calling in sick too much!"
Josh:"Wow dude, hes just being a Canseco right now. He got what he wanted out of it and now hes the informant"

by Cheezedadadada January 26, 2010

Jose Canseco

A fucking cuntbag that squeals on steroid users in MLB just to make himself, an admitted steroid user, look better

My friend turned into Jose Canseco and now everybody hates him becasue he's a douche bag.

by angelos h8er September 7, 2008

Canseco-Mode

-adjective

1. To disclose confidential information about former associates.

2. To publish defamation, typically about friends/family.

-verb

3. The act of double-crossing.

4. Informal - a person who abandons or betrays his or her party, esp. in a time of trouble.

Hinkley went Canseco-Mode and got everyone on the Band Trip suspended.

by Blue Calloway August 6, 2010

Jose Canseco vitamins

Steroids, an illegal substance usually used for performance enhancement.

The report named everyone on those Jose Canseco vitamins.

by Bej34 January 28, 2008

Blosé Canseco

Blosé Canseco:

The act of receiving fellatio while simultaneously injecting steroids

“Walked in on my roommate last night and his girl was blowing him as he injected...”

“Sounds like you caught him pulling a Blosé Canseco”

by Peterporker March 18, 2019