Word used as an acronym in texting for "Shakin'n My Butt" also known as Twerking. Like SMH: Shakin' My Head.
Guy: This song is good

Girl: It's not just good, it's lit! SMB
by Johnny M123 March 26, 2016
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"Snap me back"

This is used to tell someone you wish to chat with them over snapchat.

It can be used on snapchat or anyone else.
"Hey when you get a chance smb because I wanna talk." or "smb when you wake up."
by hey-buddo July 6, 2017
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Man, last night I prank called QVC asking for SMB lubricant and the guy responded, "You should already have that sir."
by Sarkon July 15, 2004
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An overly-polite sort of girl that uses phrases like "Tee-hee" and "'Scuse me!" all the time. Used to describe a person that acts like a goody-two-shoes.

Originated from the initals for "Samantha Marie Barnes", who is a girl that acts this way. The infamous "SMB Poem" catalogues her trials and tribulations.
My name is little SMB
My favourite saying is "scuse me"
I love Georgene and Lady Barnes
Even if M Jamba has big man arms

Mrs. Hunter spanks me in gym class
And Mrs. Olscheski loves my ass
I haven't done my homework,
Not for a while
That's why Mrs. Ullman has
Georgene on speed dial!

Thank you and 'scuse me. Tee hee!
by Techno April 12, 2005
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"Hey, are you coming with us?"
"Smb"
"Okay well damn"
by m1k333 November 16, 2022
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The shorther form of "somebody"
Alex! i think smb is coming downstairs!
by axellis June 9, 2006
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