It means save my back soul.
This is a word used when you're in a situation when everyones happier then you and you feel like you're the odd one out.
This isn't a bad thing its a observation that you have made
SMBS means:Save My Black Soul
Can someone please save my black soul i'm the least happiest one here. Everyone is really happy but me, I'm not sad (you could be sad) but I'm not as happy as them.
GIRL ONE: I LOVE THIS SUNNY WEATHER

GIRL TWO: ME TO (:
YOU: I JUST GOT A SUN BURN
by Zoe B. July 8, 2017
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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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an abbreviation for Scratching my balls is a common element of Internet slang. It was used historically on Facebook but is now widespread in other forms of computer-mediated communication It is one of many initialisms for expressing bodily reactions inspired by smh(shaking my head) or (scratching my head) or which ever you prefer
for example:

JOHN: wats up

Rich: nothing much

JOHN: you going to the party tonight?

Rich: uh SMB Probably not

JOHN: Lol smb
by Oreo N/p April 17, 2010
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dude1-Let's Play SMB
dude2-OK! I call luigi!
by cr2purple May 23, 2011
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To irritate, to get on smb's nerves
That birdie's bakin' me fakking swede, mush! To bake smb's swede is to twist their melon, man!
by kevolution April 18, 2009
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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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When someone says something so ridiculous bringing about disbelief to the extent where people around have no other choice but to shake their head in an aggressive fashion such that the shaking trickles down to the balls.
Goddamn it Chad, I told you not to drink all of the fucking liquor while we're out there hunting on the dance floor...shaking my balls (SMB)
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