1) Beat 2) Beat up 3) Flog 4) Give a spanking to 5) Lash or thrash 6) Lick but good 7) Paddle 8) Slang for to beat 9) Spank 10) Subject to a spanking 11) Thrash 12) To beat or flog soundly 13) To beat or thrash 14) Wallop 15) Work over Found on https://www.crosswordclues.com/clue/larrup
Lar'rup transitive verb [ imperfect & past participle Larruped ; present participle & verbal noun Larruping .] [ Perh, a corrupt. of lee rope , used by sailors in beating the boys; but confer Dutch larpen to thresh, larp... Found on http://www.encyclo.co.uk/webster/L/15