larrup

Uncertain. Many dictionaries suggest a connection with Dutch larpen (“to thresh with flails”).

• IPA^(key): /ˈlæɹəp/

larrup (third-person singular simple present larrups, present participle larruping or larrupping, simple past and past participle larruped or larrupped)

1. (transitive) To beat or thrash.
   • 1922 February, James Joyce, Ulysses, Paris: Shakespeare and Company, […], →OCLC:

     ZOE-FANNY: I let him larrup it into me for the fun of it.

   • 1938, Graham Greene, Brighton Rock:

     ‘A kid like that oughtn’t to be mixed up with things,’ Ida said. ‘If he was mine I’d just larrup it out of him.’

larrup (countable and uncountable, plural larrups)

1. (countable) A blow or smack.
   • 2013, Ken Sears, The Boy From Treacle Bumstead:

     That way, you got the perfect four-in-one gauge every time. If you were caught doing it any other way, you got a larrup round the lughole or a kick up the khyber.

2. (uncountable) backchat or rudeness

   Oi, less of your larrup!

• (rudeness): backchat, cheek (informal), impertinence, impudence, rudeness