1. clunk - Noun
2. clunk - Verb
make or move along with a sound as of a horse's hooves striking the ground
a heavy dull sound (as made by impact of heavy objects)
Source: WordNetThe aircraft were in a natural metal finish and most had nose art and names, although Kunkle never fulfilled his plan to name a P-38 “Kunk’s Clunk.” Source: Internet
I've read all of the Reggie Fortune short stories although only two of the Fortune novels (plus a couple of Joshua Clunk novels) and thoroughly enjoyed them. Source: Internet