Top Definition
a very important grammar thang. without it, many sentances would be very different.
with comma: I helped my uncle, jack, off his horse.

without comma: I helped my uncle jack off his horse.
by i do not want any stalkers May 13, 2005

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Slang for money, typically in large amounts. Derived from the fact that written values are separated by commas to simplify reading, e.g. 100,000,000, thus indicating that the amount alluded to is of considerable size.
"hey, how many commas you got in your bank account?"

"hand over the commas"

"we'll include yo mama, if you fuck with my commas" - Ice Cube
by 2pac4lyf October 03, 2010

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According to President George W Bush, a comma is what the US-Iraq war will look like in the history books.
I like to tell people when the final history is written on Iraq, it will look like just a comma because there is -- my point is, there's a strong will for democracy. --George W. Bush
by maffei1- October 05, 2006

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A once monthly, twice monthly, bi-weekly, weekly, or daily occurrence in which your boyfriend/male friend/brother becomes completely unbearable.
Alex: God, Chris is being such a bitch about gas money.
Bobbi: He's on his comma.
by KitsuneXKyuubi February 28, 2010

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That tricky situation a girl finds herself in when she's just getting off her period, but isn't exactly "on the market" yet. You know, it might be like day 5 or 6 and a slim pantiliner may be all that is needed. At the same time, no one wants to gross a dude out. It certainly is a quandry. But while PERIODS may stop it right there, COMMAS... are only a pause. There's always more to come after a comma.
Girl #1: Yo Stacy I met this fine brotha at the club last night
Girl #2: That's hot but damn girl, ain't you on your period?
Girl #1: Hell no hunny, that was two days ago! I'm on my comma now.
Girl #2: Well shit, that's a different story then. So what'd you do?
Girl #1: I took him home with me, what else?
by ReiReiK April 16, 2008

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When a male's penis keeps cumming, even after they finished masturbating.
Dude, I'm on my comma...
by Fedorapants April 24, 2014

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A nicer way of saying a girl is on her menstrual cycle (aka period) while in public.

Also, synonym for period.
Jack: Why is Jill such a bitch today?.
John: Yeah man I heard she was on her comma.

Jack: Wanna have sex when we get home from wally world?
Jill: I can't. I am on my comma today.
Jack: Asswhole.
by Asswhole_with_a_dubya December 14, 2009

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