To beat, flog, or thrash.
(informal, dial.) To whip; flog; beat.
2. 'larruped' (slang) drunk, inebriated.
Origin of larrup
- Perhaps from Dutch larpen to slap, thrash from larp rod, whip
From American Heritage Dictionary of the English Language, 5th Edition
- Origin uncertain. Many dictionaries suggest a connection with larpen, Dutch, 'to thresh with flails'.