Green’s Dictionary of Slang

scoff n.

also scauf, scoffings, skoff
[scoff v.]

[mid-19C+] food.

In derivatives

scoffless (adj.)

[1960s] deprived of food, starving.

In compounds

scoff jack (n.) [jack n.4 (2)]

[1930s] (US tramp) money for food collected among a group of tramps when they have been unable to beg successfully.

scoff shop (n.)

[1940s] (US) a restaurant, a café.

In phrases

cop a scoff (v.) (also knock a scoff)

[1940s] to eat.