Green’s Dictionary of Slang

warm v.

1. [late 18C+] to thrash, to beat; esp. in descriptive combs., such as warm someone’s arse/warm someone’s jacket v., to thrash; thus warming n., a beating.

2. [mid-19C] to infect with venereal disease.

3. [mid-19C] to abuse, to scold.

In phrases

warm someone’s behind (v.)

see under behind n.

warm someone’s ear (v.)

1. [20C+] (Ulster, also warm someone’s lug) to hit someone across the ear; usu. in unexecuted threat, I’ll warm your ear (for you!).

2. [1920s–30s] (US) to chatter and gossip incessantly.

warm someone’s hide (v.)

to thrash, to beat.

warm someone’s jacket (v.)

[late 18C–1930s] to thrash, esp. in context of school beatings.

warm the wax of someone’s ear (v.)

[mid-19C–1910s] to box someone’s ears.

SE in slang uses

In phrases

warm the husband’s supper (v.) (also ...husband’s dinner, ...old man’s supper)

[19C] to stand in front of the fire with lifted skirts.

warm the oven (v.)

[mid-19C] to drink, to get drunk.

warm the whole of one’s body (v.) [pun on whole/hole, i.e. the anus]

[20C+] to stand with one’s back to the fire.

warm up

see separate entries.