fattyflop*noun' 1. some one who is unusually obese or fat 2. an exercise fat people know as push ups, but because they are so fat they can't do a push up so they have to use their fat ass bellys to push their bodys up.
"Yo fatty flopshane, you done with your fatty flops yet?"
or
"I just love these fatty flops"-Shane
The lower-body equivalent to a nip slip - In other words, when accidental clothing movement causes a woman's genitalia to become at least partially visible.
After riding the waterslide, she was totally suffering from a twat flop.