3 definitions by mcbain

Un-Identified Party Injury, Mysterious injuries discovered after a a period of intoxication.
This morning, I woke up with a UPI on my leg.
by McBain February 07, 2002
Ancient Chinese Secret, Information that is confidential.
When asked for the for the secret formula, I replied "ACS"
by McBain February 07, 2002
Yo that nugga is ripped.
by mcbain September 16, 2003

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