Definition of sumph in English:

sumph

noun

Scottish
  • A stupid or clumsy person.

    • ‘There we stood like two sumphs, (as Hogg calls those who are ganging a bit aglee in their wits) gaping and staring at each other with a look which said, why did not you shoot?’
    • ‘In a world of gamaleeries and hinkum sneevies, of muckle sumphs and mowdieworts, we salute you noo, oor Willie Goo.’
    idiot, ass, halfwit, nincompoop, blockhead, buffoon, dunce, dolt, ignoramus, cretin, imbecile, dullard, moron, simpleton, clod
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Origin

Early 18th century: of unknown origin.

Pronunciation:

sumph

/sʌmf/