You can make 64 anagrams from letters in clop-clop (-cclloopp).
First recorded in 1900-05
He marches up and down, beating two pieces of wood together--clop-clop, clop-clop--as he walks.
Distinctly, both girls could hear the clop-clop of approaching hoofbeats.
There was the jangle of harness and bells; the clop-clop of hoofs, rising to a clatter.
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