See also: screw-top and screw top English Etymology From screw + top. Adjective screwtop (not comparable) Of a container: having a threaded lid (rather than a cork or push-on top). Noun screwtop (plural screwtops) A container that has a threaded lid (rather than a cork or push-on top). Anagrams crowstepWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads