Definition of donkey-lick in English:

donkey-lick

(also donkey-wallop)

verb

[with object]Australian, NZ
informal
  • Defeat (someone) resoundingly.

    ‘she donkey-licked her opposition in the 1200m sprint’
    • ‘He donkey-licked them, and in a muddling-run race where he just couldn't quite get into his rhythm, but he picked up, and look out, Melbourne Cup—here we come!’
    • ‘She's a fabulous horse to train, and she absolutely donkey-licked them!’
    • ‘My horse of the season donkey-licked Mosheen, an accomplished group-one filly, and held a decision over the top-class sprinter Rain Affair.’
    • ‘It was only a listed race, but it was weight-for-age against older horses, and she just donkey-licked them.’
    • ‘Royal Descent could be the pick despite only donkey-licking her own age in the Oaks.’
    • ‘He donkey-licked his rivals at Rosehill on Saturday.’
    • ‘Swimming in lane four is the weapon of mass destruction that donkey-licked the opposition in the 2011 World Championships.’
    • ‘She had been restricted to mostly trotting and cantering since she donkey-licked Bella Court at Awapuni.’
    • ‘It was a star-studded field, and she was resuming after so long off the scene, but she just donkey-licked them.’
    • ‘England put in a really great performance and donkey-licked us’

Origin

Late 19th century: from donkey + lick in the sense ‘beat decisively’.