Green’s Dictionary of Slang

tater-pillin’ n.

also tayter-pillin’

[rhy. sl.; tater n. (1) + pron. of SE peeling]

a shilling (5p).

1981		P. Wright Cockney Dialect and Sl. 104: tayter pillin’ ‘shilling.’.
1984		Partridge DSUE (8th edn).