No bet 

Slang for “no way” or “nuh uh”. The opposite of “bet”.

Do you wanna do some homework? No bet!

No bet by Dad-E November 7, 2021

I bet you cant mount a tv 

A person who can't handle cocaine.

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

I bet you cant mount a tv by poopypantsaman November 14, 2021

Muzz Bet

When you put on a bet that is so ridiculously small, it's almost not even worth putting on.

Person 1: Lads, I've stuck 45p on Aubameyang first goal scorer at 5/1
Person 2: Why have you only done 45p?
Person 1: I'm skint. I got steaming and spent £32 in McDonalds last night
Person 2: That's such a typical muzz bet

Muzz Bet by bigfatcamel January 12, 2022

National bet day 

If you say bet on this day you have to get slapped

March 25th

Lets hang out after work

Bet

*slap* national bet day

National bet day by Sevenavengfold March 24, 2022

i bet you eat spaghet on the pot 

Eating spaghet on the pot is a cardinal sin in most countries and being accused on such is quite a claim, enough to make people very sad.

Most notably, it is used against female streamers when you join their chat. This will make them very upset and they will have a go at you for saying such things about them. It makes most people you say it to break down crying into rivers of tears as these words have just been uttered.

guy1: *Logs onto Twitch and joins streamers stream*
guy1: "I bet you eat spaghet on the pot."
streamer: "What the fuck?? I can't believe you would say that.. It makes me so upset people still do stuff like this today. Mods, can we ban them please?"

i bet you eat spaghet on the pot by GAMERINGGAMERGAMING June 5, 2022

Fendi bet 

A fendi bet is a bet where one makes a bet without any knowledge on the team or sport.

Hey Fernando what’s all those random tennis props you added there? That looks like a fendi bet you don’t even watch tennis!

Fendi bet by Romy.VQ15 October 10, 2022

I bet this is undefined 

It was until now…

John: I made up a word. I bet this is undefined

I bet this is undefined by The guy who beat you to it October 25, 2022