2
to be gone off a pill or drunk, high, leanin, of sum sort or all of thee above
bruh im on like shyt!

im onnnn bruh!
by stix1015 May 23, 2009
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3
To hold, or possess drugs that you are willing to sell.
"Are you on?"
"Is Sampson on?"
"I'm on at the moment"
by Diego June 23, 2003
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4
1) Preposition; Above and touching a surface.
2) Adverb; Working, conducting their intended task.
3) Prefix; Continuously, continuing.
4) Slang Verb; To be menstruating.
1) I was on your mother all night.
2) Your computer is currently on.
3) The project is ongoing.
4)
WOMAN: "I'm on at the minute. Fucking men, they're all bastards..."
by Stuart Fletcher January 18, 2005
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5
1. To engage in certain conduct, behavior, activity with a conviction of progress, success, or moving forward.

2. An Affirmation of becoming.
1. I'm going to get my groove on tonight.

2. I want to get my learn on, so I'm going to college.

3. I'm about to get my grown man on because I'm becoming a daddy.
by Spnish Shaft March 08, 2008
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6
Another way to say a girl is on her period. I dislike the word period. I dislike the word menstration. And guys do too. So...just say, "She's on".
What's wrong with her?
She's on.
Ew.
by Ms. Funty January 24, 2008
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7
What happens when someone dances at you, and you dance back.
"It's on!"
"No, it's not on."
"Oh, it's on!"
by Jonah Rowley November 13, 2004
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