usally said to, or about a female, who has a very thin waist , and a very nice, large buttocks.
damn girl, get on wit yo apple bottom!
1. A way a woman responds after asked how she was doing, meaning that shes been working her streets well, and loves to have alot of sex.
2. A way to make fun of a woman by letting her know she is.
How you doin' girl,you keepin it loose, like always!