Bump Off Meaning

(chiefly Britain, idiomatic) To cut class; to play truant.

Example: 1921, William MacLeod Raine, Gunsight Pass, ch. 34:
  "Well, he's been wrong ever since I had to bump off Tim Harrigan. Talks about a fair break. As if I had a chance to let the old man get to a gun."
2006, Caryn James, "CRITIC'S NOTEBOOK; Ordinary Killers: A Theme of the Movie Moment," New York Times, 8 Feb. (retrieved 27 Dec. 2008):
  In Match Point, when a mistress is about to blab to a wife, threatening a man's comfortable life, his solution is to bump off the girlfriend.