Spasms rhymes with:
anachronisms, antagonisms, aphorisms, baptisms, capitalism's, communism's, criticisms, dualisms, embolisms, enthusiasms, euphemisms, hypnotism's, isms, journalism's, judaism's, liberalism's, mannerisms, mechanisms, metabolisms, methodisms, microorganisms, monisms, organism's, organisms, orgasms, prisms, puritanisms, schisms, surrealism's, surrealisms
Spasms sounds like:
savaging, sobocinski, spacing, speaking, specimens, spicing, spiking, subconscious, sufficiency, suffusing, supposing, suspicions