high cockalorum!, excl. — Green’s Dictionary of Slang

high cockalorum! excl.

[‘an ejaculation or exclamation; also a boy’s game in which one set of players jump astride the others (who present a chain of ‘backs’), calling out Hey cockalorum, jig, jig, jig! (Hey cockalorum jig! is given as refrain of a popular song c 1800)’ (OED)]

a general excl.

[1781		J. O’Keeffe Dead Alive (1783) 16: A second-hand son of a sorcerer! a hey-cockalorum conjuror!].
1838		Dickens Oliver Twist (1966) 134: ‘Toor rul lol loo, gammon and spinnage, the frog he wouldn’t, and high cockolorum,’ said the Dodger.