look up any word, like dirty sanchez:
 
1.
large round ass.
very firm.

yum.

juicy.
john: dude, shes got an apple butt
 
2.
Large, rounded ass that curves under to form an apple-like shape towards where the ass meets the thigh
That girl has the sweetest badonkadonkin applebutt I have eva seen!
by Haha.... no January 13, 2009