Bottoms rhymes with:
bottom's, bottom's, ageratums, argosystems, atoms, autumn's, bantam's, bantams, biosystems, bottom's, cablesystems, customs, ecosystems, items, microsystems, microsystems', mortems, phantoms, quantum's, subsystems, symptoms, system's, systems, systems', techsystems, totems, ultimatums, ultrasystems, victim's, victims
Bottoms sounds like:
baden's, badness, baidoan's, baidoans, baiting, bathing, batons, battening, batting, beating, beatings, beatnik, beatniks, bedding, bedouins, befitting, beheading, beheadings, betamax, betting, bettman's, betweens, bidding, biding, biting, bitting, bituminous, boating, boatmen's, bodanis, boeding, boipatong, booting, botanic, botham's, botting, bottom's, bottoming, budding, budnick, budnik, buffeting, butting, buttons