pattern up

pattern up (third-person singular simple present patterns up, present participle patterning up, simple past and past participle patterned up)

1. (MLE, transitive) To bring into line.

   Synonyms: sort out, correct, fix

2. (MLE, transitive, euphemistic) To inflict unlawful physical violence upon.
   • 2021 March 18, Jason Evans, “Drug gang enforcer jailed for threatening to ‘pattern up’ indebted user with a knife”, in WalesOnline‎:

     A ‘debt enforcer’ made a series of lurid threats of violence to someone who owed a drugs gang money, a court has heard.
     Louis Tyler Hall warned his target he was going to “pattern him up” and “chef him up” – references to inflicting wounds with a knife – unless he paid.