y/o

y/o

An abbreviation of "years old." Patient is 26 y/o, male, no underlying conditions.

yo

slang A colloquial variant of "hello," used either as a greeting or to get someone's attention. A: "Yo, how you doing, Sam?" B: "Hey, Tony, I'm good, man. How you been?" Yo, Tom! Did you hear what I said? You need to tune in, pal.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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