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2 definitions by ThisSecretNinja

When a man is able to fold his penis back and stick it in to his own anus.
Have you ever heard of checking your own oil? I'm sure Ron Jeremy has done it quite a few times.
by ThisSecretNinja April 15, 2010
The act of describing to friends what you would do to an attractive girl that is bent over in public.
Friend: Hey it's that hot girl we saw the other day.

Me: I just want to Split the Seam right now.
by ThisSecretNinja July 28, 2010