when a girl becomes pregnant because you thought your foreskin can be used as a condom
2 weeks later you get the call- your retarded
you ask your friend and he says you've just instapreged someone
by Jeremy Storm October 29, 2008
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to impregnate someone the second your cock enters their cunt
Dude, Chuck Norris just instapregged that chick!!!
by jer storms October 29, 2008
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