Placebo Fart 

When somebody announces that they farted even though they didn't. The victims are tricked into thinking this is the truth, and they mentally create the smell of a fart, thinking its real.

Guy 1: "Dude I just ripped a huge one!"

Guy 2: *breathes in* "Aww gross man, that's nasty!"

Guy 1: "Dude I'm kidding. I made a placebo fart."

Placebo Fart by SupaC July 20, 2010

Fart Placebo

1. The act of faking a fart
2. A device used to store farts for later use
3. A common insult used and originated by Dr. D. Nguyen
4. A company name that sells fart placebos

I was walking down the street and pulled out my fart placebo to create a stench around me.

"Why are you such a fart placebo!"

Fart Placebo by Poppyface October 20, 2009