Definition of preloading in English:

preloading

noun

mass nounBritish
informal
  • The action or practice of drinking alcohol, especially in large quantities, before going out socially.

    ‘binge drinking and preloading are two behaviours the government hopes to curb by imposing a minimum price for alcohol’

Pronunciation

preloading

/ˈpriːləʊdɪŋ/