Top Definition
adjective

1. easily crossed or penetrated
2. permeable to fluids
Man, that bitch is porous.
(Read: I say, that young woman is rather promiscuous.)
by Gman February 02, 2005
1 more definition
a sex position, using ur left testicle and placing it in the asshole.
yo i aint goin doggy style, im gonna porous her ass
by Matty Campbell December 05, 2007

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