1 definition by iloveliquor

Top Definition
When someone drinks an intense amount of alcohol, they can black out and seemingly turn into a different person. That person is Betty.
Dude, I didn't make out with 5 guys last night.. that was Black Out Betty.

Are you hanging out with Betty tonight?
No, I'm not drinking liquor.

Betty likes to smoke weed and cheat on her boyfriend.

I am a calm person, but Betty likes to fight people.

Hey, what were you talking about when I saw you last night? I think you were speaking a different language.
Oh.. that wasn't me you spoke to.. that was Betty.
by iloveliquor May 05, 2009

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