slip one past (someone or something)

1. To attempt to cause someone to accept, overlook, or not notice something through stealth, trickery, or deception. I tried to fit some subtle jokes in my essay, but you just can't slip one past my teacher. The show was known for its envelope-pushing humor, and the writers were always trying to slip one past the network censors.

2. To score a point by getting a ball, puck, or similar object beyond an opponent. The striker slipped one past the keeper with a brilliant shot to the corner of the net. Despite the team's fantastic defensive display, the Red Wings' forward managed to slip one past the goalie with just two seconds left on the clock.