by Dickless Mcghee March 10, 2011
To fail instantly by your own words when you try to comeback in an argument. (Combined from the words Instant and Fail.)
Bill: Joe, I still think that Cartoon Network has the best Cartoons.
Joe: Say what? Theres Nick, Disney, PBS Kids......
Bill: You watch PBS Kids?! Insta-fail.
Joe: Say what? Theres Nick, Disney, PBS Kids......
Bill: You watch PBS Kids?! Insta-fail.
by Doubledome June 08, 2007
by Jcjcjjjjmef November 02, 2014
To kill something in one shot / burst of damage. Usually used in PvP games to describe a player who died instantly.
by tanner13921 July 08, 2012
To instantaneously ejactulate
by Swagmoneymillionare March 15, 2015
When you're talking to your bro, and all of a sudden he gets hella piss and upset like girl pmsing and your bro won't STFU or Calm his tits
by Jack KeyChain July 07, 2014
by The Waffler February 09, 2005