It originated in 2000 around South Gwinnett in Georgia and it means "Definitely" or "Im excited" or "I can't wait"or "For sure" or "Cool beans" or "Im down" or "Im game" or "I will be there" or "Yes" or as an updated version of saying "You bet" or "You betcha" which means you agree and are looking forward to an upcoming event/plans of some sort.
Dude: Are you coming to the club tomorrow night? They said Usher is performing and there will be hella chicks there"
Dude 2: Fuck yeah bet that up!
Dude 2: Fuck yeah bet that up!
by RCCola11581 August 18, 2023

by yeeet yeetyet September 4, 2019

Bet (archaic) used to mean to wager against someone that you are right and the are wrong.
Or can mean that something is definitely true when both parties are in agreement.
Or can mean that something is definitely true when both parties are in agreement.
by Joshamaphone May 10, 2023

Jimmy went to a party last night, he couldn't mount a TV so he just drank!
DEF: I bet you cant mount a tv
He could not handle or was able to do cocaine
DEF: I bet you cant mount a tv
He could not handle or was able to do cocaine
by poopypantsaman November 14, 2021

A truly meaningless comeback with absolutely no use at all and shouldn't be allowed to be used. Bet is a comeback only people at the age of adolescence. It's a bad comeback generally; you're only trying to make yourself look better.
Person 1: hey you stupid idiot
Person 2: fight me
Person 1: bet
Person 2: *beats the ever living shit outta them*
Overall, only losers will ever say bet, and almost everytime you beat somebody in a game, race, whatever it is, you may hear this work of modern art. Don't use this word. Ever.
Person 1: hey you stupid idiot
Person 2: fight me
Person 1: bet
Person 2: *beats the ever living shit outta them*
Overall, only losers will ever say bet, and almost everytime you beat somebody in a game, race, whatever it is, you may hear this work of modern art. Don't use this word. Ever.
by Leaf0 March 21, 2024

by Cbaabc123321 April 25, 2024
