push off

push off or shove off  {v.}
1. To push a boat away from the shore.
Before Tom could reach the boat, Jake had shoved off.
2.  {slang}
To start; leave.
We were ready to push off at ten o'clock, but had to wait for Jill.
Jim was planning to stay at the beach all day, but when the crowds arrived he shoved off.
Categories: {slang} {v.}