Farte Blanche 

The liberty to pass gas freely without fear of discovery.

Scott: I think we should skip the Mexican food for lunch today, it gives me mad gas and we have to go back to work.
Tom: Come chill with me in the fermentation lab this afternoon. We're growing anaerobes today and the stench is so ripe you'd have farte blanche.

Farte Blanche by Iguana Girl September 25, 2005

Farte Blanche 

Unrestricted power to fart at one's own discretion. Permission to fart freely.

She gave her husband farte blanche to stink up the bedroom.

Farte Blanche by Friedlad August 21, 2013

Farte Blanche 

Having the freedom to fart whenever you want, which men don't have when they are around women.

After scoring with a chick, Robbie never sleeps over because he can't go all night without having farte blanche.

Farte Blanche by Robbie Todman June 20, 2016

Farte Blanche 

A light-headedness and pale pallor caused by an adverse reaction to an anal olfactory offence (real rip-snorting air-biscuit) exacerbated holding ones breath for too long to avoid the onslaught to said offence.

It was my turn underneath for a 69. I let one go and when I eventually let him out from under the covers he had such a 'Farte Blanche' that I thought he was going to pass-out!

Farte Blanche by Razenby August 29, 2013

Fart Blanche 

Permission by one's spouse to fart under the blankets while in bed together.

"Honey, you have fart blanche to fart under the blankets tonight."

Fart Blanche by bean_eater February 9, 2010