A phrase used to refer to anyone who has used ketamine and suffered ill effects as a consequence. Normally, this phrase is used specifically to deride someone either unconsicous or incapacitated, usually on the floor of a club or generally in someone else's way.

Can be shortened to AK.
"Don't trip over the a-hole in the k-hole!"

"Nah, don't bring Dave, he's always the AK."

by Sam Sato November 3, 2006
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