- noun a quantity or portion. The word is imitative of a slapping or smacking (down); here used in the sense of dumping or depositing spoils onto a table or other surface.
- noun a contract killing. A variant of hit.
- noun heroin. A later variant form of smack.
- noun a whacky person.
- verb to kill. A racier and more recent coinage based on the well-established use of hit in this sense.