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An easier way to explain it is 30 minutes past noon, rather than it turning into a hour long debate about when it becomes AM and PM
Mike-I came in for work at twelve thirty
Jackass-You guys are still open then?
Mike-Noon Thirty penis breath
by J-reed September 23, 2007
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An indefinite time between 12 Noon and 1 PM, roughly close but not necessarily at 12:30 PM, usually within 10 minutes of that time.
I ate lunch at around noon or noon thirty, then went home for a siesta. Damn, I love sleeping...
by stratifymecaptain March 02, 2008
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When you're trying to say 12:30 PM without explaining that you're talking about the afternoon, not the morning.
A: When is it due?
B: Twelve Thirty.

A: AM or PM?
B: PM, duh.
A: Well, why didn't you just say 'noon thirty?'
by jerryjonesmothafucka November 24, 2016
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Thirty minutes past the 12 hour of the day.

Alternate uses: Noon (add number between 00 and 59).

Ex. Noon Seventeen

Phrase commonly used when time is of the essence , and/or when in a formal environment.
Person sans watch: Say dog, What tha time is?

Person with watch: Noon Thirty.

Person sans watch: Already cuz.
by BHOLT January 12, 2010
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A dumbass term for 12:30 pm that was made up for no goddamn reason.
"I swear to God if you say it's Noon-thirty one more time I'm gonna rip your spine out of your anus"
by Nugs-Not-Drugs June 23, 2017
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