laughing gas 

Nitrous oxide. Can be bought over the internet for 'culinary purposes'. A cheap drug that makes everything funnier, usually taken in a balloon so you get oxygen as well and don't die.

Mike: Dude do you wanna buy me some laughing gas?
Brett: Shit man i'm skint you get it.

laughing gas by Abraham Smith May 12, 2007

Laughing gas 

Nitrous oxid,e a gas used as a propellant, in engines, and as a drug

He had apparently had access to laughing gas and fell down after inhaling it.

Laughing gas by The Return of Light Joker April 20, 2010

Laughing Gas 

The result of laughing so hard you fart.

(Someone tells an awesome joke)
(Someone laughs & farts as a result)
"Dude, what the heck was that?"
"Aw, sorry man, it was laughing gas."

Laughing Gas by Flamin Jeez April 23, 2009

Laughing Gas 

Laughing so hard or so suddenly that one farts

Evan: Jules has laughing gas.

Chris: Like, to get high?

Evan: No, like, farting.

Chris: Lol!! (*farts*) Excuse me.

Laughing Gas by NotDainty February 28, 2015

laughing gAss

when you laugh so hard you fart.

A play on the word laughing gas, also known as nitrous oxide or N2O for the nerds

example in everyday conversation
Patrick: i just killed someone and fucked them in a Tranux
Paolo: a WHAT!?
Patrick: Look it up the definition, it might give you a laughing gAss

laughing gAss by existentialdread1401 December 17, 2025