gas it out 

To not do something previously agreed to. (usually at the last minute)
Can be shorted to 'gas out'.

Or to reject an idea/suggestion.

Example A;

Person A: "hey man, ready to go?, it's gonna be awesome!"

Person B: "...errrrm... actually i think i'm gonna gas it out.

Person A: "You're an idiot."


Example B;

"I was going to see my bird last night but i thought i'd gas out and have a pot noodle and a wank instead"

gas it out by moon boy February 28, 2009

Ran out of gas

Getting head from your girlfriend when your still living at home

Yo, last night I ran out of gas. Sorry I was late!

Ran out of gas by Full Attach July 12, 2017

out of gas 

lame, beat, worn out, over.

After Danny L. says he smokes banana peels, Phil C. says,"Danny, you're so out of gas."

out of gas by Nicky Ramone November 7, 2004

out of gas 

exhausted, worn out

Man, am I out of gas.

out of gas by The Return of Light Joker June 12, 2009

Out of Gas 

When a person has to poop really bad and they can no longer buy time by farting

Jimmy let out a string of farts in an attempt to relieve the pressure of his impending poop. He carefully allowed one last fart to slip out. Jimmy then knew that the next thing to exit his ass would not be flatulence. He was out of gas.

Out of Gas by Jimmy Flatulence October 25, 2020

Out of Gas 

A feeling of extreem exhaustion. Often caused by challenging Peter to a game of Squash or Halo 4.

"I'm out of gas. Coach, take me out. I'm done" - Amin

Out of Gas by Sticky Balls April 27, 2013

outta gas 

an unfavorable predicament; bad situation inwhich there is nowhere to turn to rite the conflict

Drug dealer: "Where's my money?"
Gringo: "I ain't got it? See what had happ..."
Drug dealer 2: "White boy...you outta gas."

or

Dave: "I didn't finish my homework."
Ryan: "Ah man..you outta gas...you know Ms. Jackson don't play."

outta gas by Ben Anson July 30, 2008