Англо-русский словарь Мюллера
bunk off сбежать из дома, из школы и т.д. More than half the class bunkedoff last week when there was a test. The reason he lived with his grandparentswas that his father had bunked off and left his mother when he was a baby, andshortly afterwards his mother had got ill and died.
Большой англо-русский и русско-английский словарь
разг. сбежать из дома, из школы и т.д. More than half the class bunked off last week when there was a test. ≈ На прошлой неделе с экзамена сбежало полкласса. The reason he lived with his grandparents was that his father had bunked off and left his mother when he was a baby, and shortly afterwards his mother had got ill and died. ≈ Он жил у своих деда с бабкой, потому что отец ушел из семьи когда он был еще ребенком, а мать вскоре после этого заболела и умерла.