done a bunk

English

simple past and past participle of do a bunk
- 2007, J. K. Rowling, Harry Potter and the Deathly Hallows, USA: Arthur A. Levine Books, page 609:
  "Where's Professor Snape?" shouted a girl from the Slytherin table. "He has, to use the common phrase, done a bunk," replied Professor McGonagall, and a great cheer erupted from the Gryffindors, Hufflepuffs, and Ravenclaws.