1. [mid-19C+] (US) to hit, thrash or trounce; also fig. use.
2. to hit (rather than beat) an object.
3. [1950s+] (US black/campus) to act well, to do something especially well; thus whaling n. and adj.
4. [1950s+] (US) to attack.
5. [1950s+] to act aggressively, fast.
[1950s+] to eat furiously.
[20C+] to beat viciously.