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1.
1. opposite of "the key"
2. acting in opposite effect to how u desire
3. the one thing that undo's all acts of good
eg. John commenting about the shittest player on some random basketball team "Hahahaha that guy is fucking antikey man!"

or Anthony talking about the object of his desire: "Mary's antikeying my life atm, I can't sleep 'cause I keep thinking about her"

or James admiring a hot girl from behind then realises her face is monged "Damn... that girls fine, shiet. her face just antikeyed her."
by Tony :) April 07, 2005