Hear an Unreleased M.I.A. and Blaqstarr Demo Track
Based on the undulating website Ms. Arulpragasam bought for the song, IThinkYouMightGetShitForThat.com, this one's presumably called "I Think You Might Get Shit for That." Add more bass and it has potential.
Update: Ah, it may actually be called "Lemme Hump You."