keep off (1)
Meaning: to not go on something, or to stop something or someone from going on something
- keep off sth The sign says "Keep off the grass", so we'd better stay on the path.
- keep sth off sth We were having a picnic when my wife told the kids to keep the flies off their food or they could get sick.
Our dog is being taught to keep off the sofa, but sometimes she still tries to