A promise, just like pie crust, that is easily made and easily broken.
Joe: Ay, you promised you would help me on my assignment
Chris: Dat was a pie crust promise so don't even trip.
A woman/girl that hangs out with many guys and takes their clothes, jewelry, hats, phones, etc. and does not return them for hours, days, weeks, and even months, even though they don't necessarily need it. Can be compared to the character D'Bo from the movie Friday.
Joe: Dog, it's cold. Why ain't you got your sweater?
Chris: Dat damn sheebo jacked my shit like two weeks ago.