Under the influence ; drunk, high, or both.

Someone who steals gas out of cars

When you have bubbles in your nutsack

An idea so outrageous, unrealistic, or nonsensically foolish that the person behind it seems to be high on "gas" referring to marijuana smoke.
Like saying "No Way!" Or "What are you smoking?"

ooo ga booo ga is used when you scare somebody or just want to sound stupid it is a fun word ust to say in general

Lip gas also known as a wierd sound when you smack your lips, it sounds a bit like your farting, hence the name.
Another meaning of lip gas is sticking a fork in your lip and putting some gas inside of your lip. Don't try it, it hurts.

When two people are taking a shower together and one of them takes a shower cap and fart's into it and put it over the other persons face