To provide unsolicited advice or insight to a person who needs it (non-religous).

To put someone up on game.
"Stop preaching to us bro, we just tryna hoop"
by Onehappyblackguy September 26, 2020
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said to give encouragement to a person dropping mad knowledge.
ex. Well pimpin ken say 'dont down it, crown it'.
Don magic juan 'PREACH!!!'
by ryo sukuki December 26, 2003
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"Preach" has no single meaning, but is used to convey a casual sense of affirmation, acknowledgement, Said in agreement, something that is real, absolute, well said, a person dropping mad knowledge,

Or to indicate that something has impressed you favorably.

Its usage among young blacks has been parodied ad nauseam among clueless suburban whites.

Seamore .... speak..... preach…….

Man I just started a new fur line.... Preach

by Mz Nikki August 15, 2006
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What teenage girls say when their friend shares a mildly inspirational image on Instagram, usually followed by 3+ emojis.
Picture: "believe in yourself"
Generic girl: "preach!!! *emoji spam*
by dickwaggle December 26, 2014
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When you disrobe in an office bathroom, and intentionally not lock the door so that an unsuspecting co-worker will walk in.
Dude, did you hear what happened to Brian? He went to use the bathroom, and Mike totally Preached him.
by Bigapples1 March 27, 2018
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Same as "amen", as in "amen to that", but sounding cooler. Was widely used around 2005, then got old.
Chick 1: "Justin Bieber got so manly!"
Chick 2: "Preach!"
by KenM September 21, 2015
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when 2 people, whom refuse to admit that they like eachother, are flirting.
Tom and Ruby were talking to much, Preach.
by ssheeeeesh March 10, 2023
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