Green’s Dictionary of Slang

fight v.

SE in slang uses

In compounds

fight-water (n.) [the effect]

(Can.) a spirit.

[UK]Partridge DSUE (8th edn) 389/2: late C.19–early 20.

In phrases

fight at the leg (v.)

see under leg n.

fight nob work (v.) [? to act like a nob n.2 (1)]

(UK Und.) to succeed without working in the respectable world.

[Aus]Vaux Vocab. of the Flash Lang. in McLachlan (1964) 254: To act with such prudence and knowledge of the world, as to prosper and become independent without any labour or bodily extertion; this is termed [...] fighting nob work.
fight with the nails on your toes (v.) (also fight with your own toenails)

(Irish) to be obsessively, continually aggressive.

[Ire]RTÉ Radio The GB Show 1 Nov. She says she knows you and the two of you would fight with your own toenails [BS].
[Ire]S. Connaughton Border Diary n.p.: ‘Do you know what it is you’d fight with the nails on your toes.’ ‘Only when I’d be done stamping on yours’ [BS].