when ones butt has absolutely no shape to it at all. Looking very flat, like a pancake.
What happened to good old-fashioned pancake butt. Now that's what mom used to make. No cupping necessary.
by robert hilla March 26, 2009
when a woman's ass is flat and or non existent
yea she was really cute and had a great personality, but she has a bad case of pancake butt
by solo insanity January 19, 2013