CLOP

clop, clippety-clop, clip-clop, clopping, clunking, clumping

(noun) the sound of a horse’s hoofs hitting on a hard surface

clop, clump, clunk, plunk

(verb) make or move along with a sound as of a horse’s hooves striking the ground

Source: WordNet® 3.1

Etymology

Noun

clop (plural clops)

(onomatopoeia) The sound of a horse's shod hoof striking the ground.

(slang) My Little Pony-themed pornography

Verb

clop (third-person singular simple present clops, present participle clopping, simple past and past participle clopped)

To make this sound; to walk so as to make this sound.

Anagrams

• CPOL, OLPC, colp, ploc

Source: Wiktionary