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v. Simple past tense and past participle of clunk.

"As the coin clunked somewhere in the machine’s innards, Jenny heard a faint buzzing, then a mechanical ticking."

clunked    clunking    clunks   

sound    go   

Funk    Monk    blunk    bunk    chunk    crunk    debunk    drunk    dunk    flunk   

thunk    whump    whoosh    thwack    clank    clack    plop    whir    thud    whomp