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1980s. Meaning yes or I agree.
A: "Aye bro this songπŸ”₯πŸ”₯"

B: "On So."

A: "We still going out tonight?"

B: "On So"

A: β€œ Damn them hoes cold.”
B: β€œ On So.”
by Onsopussy January 24, 2018
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Aug 11 Word of the Day
You can tell by the way she walks, she got that WAP.

You can look at her face and tell she ain't got that WAP.
by Black Don August 06, 2020
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One night stand only sexuality, it is where you have no need for relationships, emotional connection. You just sleep with someone to satisfy a need.
I’m O.N.S.O.S (One Night Stand Only Sexuality) means that this can only one night type of deal. No connection emotionally at all
by Golden pants July 25, 2020
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