Top Definition
A thugged out way of asking how someone is, or what they are doing.
Yo, nigga, whas popin'?
by BootylishuzBabe April 21, 2004

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Phrase used to characterise an unsolicited visit to a residency via no mediums of communication. Made prominent by classic American sitcom "Seinfeld"
No Jerry! I Love The Pop In!!! What will i do???
by Art Vandalay November 23, 2003

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A quick, unexpected visit
She can't do the pop-in!
by Genku July 29, 2003

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When you fantasize while masturbating then someone appears in your fantasy unintentionally, in most cases someone who should not be there.
"I was cleaning the rifle then all the sudden out of nowhere your wife makes a pop in" "A pop-in? What the fuck? Get her out of there " "I tried she wouldn't leave , it wasn't my intention i can't control who pops-in"
by Johnny Martinez March 01, 2005

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To get drug's. Used over the phone as a code word.
"Do you think I could 'pop in' later on."
by Diego July 29, 2003

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The Urban Dictionary T-Shirt

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popin... uh used by most crips or whom ever
yo cuddie whats popin yo
whats popalockin
then they will go CLLLAAAAAATTTT
by big emmanuel from NY March 14, 2004

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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