(military, nautical, historical) A very large, fast warship with a relatively-shallow draft and minimal belt armor, carrying a relatively-small number of very heavy guns; sometimes classed as a type of battlecruiser.

Synonym of cruiser (“kind of bicycle”)

Alternative form of crumbum

(idiomatic) To do something excellently

(exercise) A type of exercise in which one touches alternating knees with the opposite elbow while performing a crunch.