Origin of larrupEast Anglian dialect, dialectal , probably , with intrusive vowel, for an unverified form lerp, an unverified form larp from or akin to Dutch larpen, to thrash
transitive verblar·ruped, lar·rup·ing, lar·rups
Origin of larrupPerhaps from Dutch larpen to slap, thrash from larp rod, whip
(third-person singular simple present larrups, present participle larruping or larrupping, simple past and past participle larruped or larrupped)
2. 'larruped' (slang) drunk, inebriated.
Origin uncertain. Many dictionaries suggest a connection with larpen, Dutch, 'to thresh with flails'.