fartpalm

When you facepalm with a hand you just farted on. Useful in analysis of the fart's contents. Especially potent when wearing knitted gloves or mittens.

I just fartpalmed and now my nose is burning. I have got to lay off the 4-alarm chili.

Ugh, dude! That's nasty. Fartpalm on your own time dude, not while i'm trying to enjoy my nachos!