plural of knock-on

A small container usually provided with a bar used to empty espresso grounds by pounding a portafilter against the sides or the bar.

plural of knock-on effect

plural of spark knock

plural of knock box

Alternative form of antiknock

plural of knock about

plural of knock-knee

(slang, euphemistic) To have sexual intercourse, especially recreationally if not casually.

(idiomatic, rare, informal) stunning, amazing, very impressive.