side bet 

When gambling on an event whether it be a card game, at a casino, at a race track, etc., two or more people may choose to place a seperate bet away from the main pool of betting.

Lets say Joe, Bob, Chris, Tom, and Becky are playing a card game and they are all betting $10 a hand. Tom and Joe may get a little extra competitive and decide to place a side bet between just the two of them. They will bet the originally agreed upon $10 on a game with everyone at the card table involved and they will bet, lets say another $25 just between the two of them.

side bet by Douglas Teel November 5, 2007

Side Bet 

An A-B conversation someone Cs they self into

Jacob was getting in his girlfriend Alisha's head for something stupid she did and her friend Taylor standing by listening, opened her mouth and started side betting in Alisha's defense.

Side Bet by Thiiis Guy! September 17, 2023

side beta 

noun: a male that inhibits fuckboys antics that deserves to be left on the side lines.

or: male beta

-

ie: Brenda: “Whom are you seeing these days?”

Ashley: “I can’t find a main so I have a few side beta’s.”

side beta by BuffyTheManSlayer July 10, 2018

You better stay on that side of the street motherfucker i'll knock you OUT 

Gerard way in an interveiw was telling a story once about a guy in a crack house (I think) and the guy said this to him
some mcr fans (aka killjoys) may say this at times when someone says these things:
A:(normal sentence containing the words "you better")
killjoy: YOU BETTER STAY ON THAT SIDE OF THE STREET MF I'LL KNOCK YOU OUT!
OR
A: (normal sentence containing the words "that side of the street" or "that side/street")
killjoy:YOU BETTER STAY ON THAT SIDE OF THE STREET MF I'LL KNOCK YOU OUT!

A: and i was like, "bro stop stay on that side of the street! I need to catch up"
Killjoy: YOU BETTER STAY ON THAT SIDE OF THE STREET MOTHERFUCKER I'LL KNOCK YOU OUT!

You better stay on that side of the street motherfucker i'll knock you OUT by gerards_way March 5, 2021

sidebet 

Someone you keep on the side even though you have an interest in others.

I'm just your sidebet.

sidebet by EllaMint July 18, 2006