faithbutter 

A stick of butter which seems to run out, but never does. All you do is keep using it, and as a long as you use it regularly it will never cease to provide you with delicious butter.

While grilling corn one day, I decided to use faithbutter for that long-lasting taste.

faithbutter by Justin-ship May 27, 2007

Fartbutter 

Fartbutter is a fart let out with a little wetness that stays in between the buttcheeks. It makes your buttcheeks slipper, so they slide back and forth as you walk or even run. So as the old saying goes "slippery when wet"

Damn, my ass has enough fartbutter build up in it.

Geesh, when will I let a fart with out the butter?

Fartbutter by fartyuyiorieoirtjo September 16, 2010