SB

SB = any sort of boner. Specifically a Spontaneous boner. This slang is created, to be able to talk about any sort of boners in front of a girl, without them knowing the definition.

a hot girl passes by...."ohh dude, SB!"
or, if u get a boner in class, u would like to share with friends...."man, i just got an SB!"

by CYMAN (Windsor) August 17, 2008

SB

Abbreviation for a sexy butt

*Boy stares at ass*

"Damn, she has a SB."

by ChaosShot94 July 20, 2008

SB

Super Bad

"This guy I met is really SB"

by Corvo Riley 7 June 22, 2018

SB

abbreviation for "Spring Break;" duh.

I'm so coked out I can't write words longer than longer bc this SB in Vegas was wild af!!!

by YourBenefactorNinja March 14, 2017

SB

Starting Bid

A: What's the SB and MI?
B: 100 and 10. The AB is 500.
A: Awesome. 100!
C: 110 (lol sorry)

by Lucky_Icecube March 17, 2017

SB

1)An abbreviation for Skinny Bitch
2) What you call a friend when they do something a weak/frail person would do

Ex 1:

God, Amanda and her clique are a bunch of skanky SBs

Ex 2: (after your friend tries to spike the volleyball but fails and only brushes her fingertips against it)

You: Haha SB moment :P

by Jess'sBFFWhoCantRidePixi September 03, 2010

SB

"Spring Break"

"It's SB!!!"

by RussianKGB April 13, 2004