Top Definition
urin thumin were stones used by old hebrew's for dowsing.
Yo man you can buy a urin & thumin rock on E_Bay for less than 10 dollars.

I sold california rocks on E_Bay . Crazy norte americanos poco loco Si!!
by itichie_nocanpo October 17, 2006
Something that leaves your body through the genetals. Full of stuff your body doesn't want.

See also R. Kelly
I need to pee.. I need to urin.
by MATT April 02, 2005

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