slope off
1. To lie at a downward angle. This hill rose steeply before sloping off at a more gradual incline. Be careful—the riverbank slopes off very suddenly in places.
2. To leave or move away, especially in a quick, quiet, and furtive manner. One by one, the boys sloped off to avoid being punished for vandalizing the gymnasium walls. Tom and I sloped off to escape the dreadful party and get a drink by ourselves.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.