Definition of glunch in English:

glunch

verb

[no object]Scottish
  • Look bad-tempered or depressed.

    • ‘His father would glunch and glare at every mouthful he saw his son eat.’
    • ‘He saw me twice a day, and glowered and glunched at me, like an old-fashioned minister.’
    • ‘This failed to satisfy Crump, who glunched and gloomed and spat out some hot oaths.’
    • ‘After all, does any great man glunch and gloom?’
    • ‘I liked to come here instead of biding in Fordoun, with the old man glunching at me and my bairn.’
    glower, frown, glare, lour, look daggers at, look angrily at, give someone a black look
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Origin

Early 18th century: of unknown origin.

Pronunciation

glunch

/ɡlʌn(t)ʃ/