To physically combine dancing and farting
I cant believe she farted as she twirled and called it fancing.

"Yes she just fanced"
by toiletseatgoesdown January 30, 2015
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"i was in the middle of extreme fancing when my dog knocked me over"
by playmaker03031 November 2, 2011
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Helga was fancing all over the dance floor.

Or

Helga why are you fancing? -To get rid of the smell.
by Helgaaaaaaaa May 21, 2011
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Finger dancing.

Dancing solely with ones fingers.
Jimmy was already in bed but he wanted to dance, so he did some fancing.
by GreenLightRedLight March 30, 2010
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The ROT13 encoding of the ever-popular exclaimation Oh Snap! It adds a new layer of mystery to the phrase which makes even the most prepared nooby's head spin. Sounds like a foreign phrase, too, so the ladies come flocking.
Nappy: i am haxor loloraz

Slifie: Shut it n00b.

Greg: Bu Fanc!
by gtiff123 August 29, 2005
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The dance you do when you are a fan of something and something really great happens in your book, movie, TV show, etc.
Oh my gosh! Season 2 of Firefly just came out! Whoohooooo!!! I'm fancing my butt off, cuz I'm a panty-waist idgit!
by poople.com February 15, 2017
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The ROT13 encoding of the ever-popular exclaimation Oh Snap! It adds a new layer of mystery to the phrase which makes even the most prepared nooby's head spin. Sounds like a foreign phrase, too, so the ladies come flocking.
Nappy: i m haxor loloraz

Slifie: Shut it n00b.

Greg: Bu Fanc!
by gtiff123 August 2, 2005
Get the bu fanc mug.