SMB 

An abbreviation for “Super Mario Bros.”

Guy 1: Man, I can’t wait to play some New SMB U Deluxe!
Guy 2: You do know that Bowsette isn’t in it, right?
Guy 1: shut

SMB by Aqxer July 6, 2019

SMB 

Short for "Sheet Music Boss" a professional piano YouTube channel that creates tutorials on how to play songs requested by the viewers. They also turn songs into memes and play meme music, like Area 51 and Astronomia which they did a good job on.

SMB fan A: "Did you see the new piano tutorial by SMB, it was really great"

SMB fan B: "Yes, I did and it was a video, I learned how play it!"

SMB by Matzwood Knight October 6, 2020

Smb 

Is the acronym for Suck my balls, is commonly used in text as an injector when writer is agitated .

1:You can’t count or something because I see 3 trees

2:No there’s four look it a small one right there

1:Smt smb

Smb by Tictaccrack June 14, 2021

Smb 

Smb (Suck my balls) is a comeback you use when somebody tells you a offensive sexual joke

E.g
-I fucked your mom
-Smb (suck my balls) like i care

-You're gay
-Suck my balls losee

Smb by nagitos shiny cum July 29, 2021

SMB 

SMB a texting symbol that's stands for shit my bed.

Gas prices got so high I almost SMB.

SMB by TeamDepp May 23, 2022

smb 

suck my balls

*wins in a video game with toxic players*
“smb”

smb by Classic26 June 27, 2023

smb 

snap me back

when ur bf doesn't answer u on snap so u text him "smb!!"

smb by broballsguy July 18, 2023