-o-matic, sfx — Green’s Dictionary of Slang

-o-matic sfx

[‘technological’ sfx -omatic]

(US campus) a sfx indicating intensity or repetition, e.g. cram-o-matic under cram v.

1978		B. Woodward Grease [film] Why this car is automatic / It’s systematic / It’s hydromatic / Why it’s grease lightning.
1982		Eble Campus Sl. Fall 4: o-matic – emphatic suffix.