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1.
Passing an object through someone's butt crack when they are not looking.
I took that badminton rackett and gave him a swipe card.
by Shawn Maglicic May 19, 2005
 
2.
The act of swiping your hand, with a credit card motion, in the arse crack of fellow person.
Often practiced under the influence of alcohol.
Sometimes used as a way of getting someone’s attention on the dance floor, winding them up or just as a general flirtation.
A game invented by the infamous Ellie 'the terrorist'.

Also practiced by her partner in crime, Lucy 'the hutch'.
I can't believe she just swipecarded me
I'd love to swipecard that arse
Swipecarding is so much fun
by Nevlar October 12, 2010