Definition of larrup in English:

larrup

Pronunciation /ˈlerəp/ /ˈlɛrəp/

transitive verblarrups, larruping, larruped

[with object]informal
  • Thrash or whip (someone)

    • ‘Chrissie was being larruped with Nick's belt’
    • ‘They've come away on a windy day with a result, but we should be larruping people like that.’
    beating, battering, thrashing, thumping, pounding, pummelling, drubbing, slapping, smacking, spanking, hammering, cuffing, thwacking, mauling, pelting

Origin

Early 19th century (originally dialect): perhaps related to lather or leather.