Top Definition
a woman of the slack variety, considered to be sexually promiscuous, slutty and excessively wide in the vaginal region.
john to matt - hey matt check out that slacksy! i heard its like throwin a sausage down a hall way!
matt to john - haha yeah what a tart
matt and john to slacksy - SLACKSAAAAAAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
by Slacksy January 28, 2009

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