Liberal Dictionary English Dictionary
- an unstressed syllable prefixed to onomatopoeic and other expressive words, usually forming adverbs or interjections: kerflop; kerplunk; ker-splosh.
U.S. slang prefix, by 1836 as che-, 1843 as ker-, possibly from influence of German or Dutch ge-, past participial prefix; or ultimately echoic of the sound of the fall of some heavy body.