pop that peach

the word pop is referring to the action of throwing that Peach in a circle.
the word peach represents what you yourself would classify your juicy booty as.

Oh Damn Casey, if you ain't twerking; you ain't werking. Girl you betta Pop That Peach.

Simp

Someone with no original viewpoint or opinion on anything; to which they will agree with whoever they are with on everything in hopes it will Win the favor of that person.

Austin Hartney is a simp