- (idiomatic, intransitive) to pass without having been taken advantage of.
- 2011 June 28, Piers Newbery, “Wimbledon 2011: Sabine Lisicki beats Marion Bartoli”, in BBC Sport:
- She held her nerve after failing to serve out the match at the first attempt, seeing three match points slip by in a nervous service game at 6-4 5-4 and recovering from losing the tie-break to dominate the decider.
- to go unnoticed
- The children managed to slip by when the patroller was looking away.
- The children slipped by the patroller.