Someone who fails to do something they were supposed to do. Shanking can be deliberate or accidental, the key aspect is just that they failed to come through on something.
Someone not showing up to their friend's party is just a flake.
But not showing up, and also forgetting they were supposed to bring the tap, that is a shanker.
But not showing up, and also forgetting they were supposed to bring the tap, that is a shanker.
by mad scientist August 28, 2006
Get the shankermug. look at that fat kid's shanker, its so short and fat!
that girl doesnt like me because i have a shanker.
that girl doesnt like me because i have a shanker.
by sausage robino December 12, 2008
Get the shankermug. 
by supersab September 6, 2010
Get the shit shankermug. The sexual act where one person stretches out their neck (impersonating a llama), spits in their partners eyes until he or she is blind. Then the blind partner proceeds to find (blindly) the opposite sexual mate's genitalia and shank (also known as "stab") it with a carrot.
I'm buying some carrots, not for the Vitamin C, but so that Marie and I can do the Llama Shanker tonight.
by Manchelli March 6, 2009
Get the Llama Shankermug. Rhyming slang for "wankered"
I only like RnB before going out, gets you in the mood for getting lamb shankered
Vodka gets Gretna absolutely lamb shankered
Lou like to smoke gwan, it gets her lamb shankered
Vodka gets Gretna absolutely lamb shankered
Lou like to smoke gwan, it gets her lamb shankered
by ginnipanni September 24, 2009
Get the Lamb shankeredmug.