- A dull sound; a thump.
- A blow that produces a dull sound.
- Informal A stupid, dull person.
- To make or move with a clunk.
- To strike something so as to make a dull sound.
- To strike so as to make a dull sound: "Icy weather affected the clock's mechanism and for several hours Big Ben clunked instead of bonged the time changes” ( Christian Science Monitor).