Green’s Dictionary of Slang

slice v.

also slice on, slice up

[1940s+] to attack, usu. with a knife.

In compounds

slice and dice (n.) [the fate of the victims]

[1980s+] (US) a horror film; also attrib.

Slice City (n.) [-city sfx]

[1940s] (orig. US black) an assault with a razor or a knife.

slice job (n.) [job n.2 (2)]

[1950s+] (US) an attack with an edged or stabbing weapon.

In phrases

slice on/up (v.)

see main sense above.