Here's what rhymes with gummery.
summary mummery Words that almost rhyme with gummery
gunnery nunnery utterly cutlery buttery rubbery scullery luxury drudgery motherly shrubbery southerly trumpery colorfully discovery adultery brotherly upwardly blustery compulsory stubbornly effrontery trustworthy perfunctory bloodthirsty introductory untrustworthy