sponge on
sponge off
To exploit parasitically; depend upon for support.
He is already forty years old, but he refuses to go to work and sponges off his retired parents.
square off
To stand ready for fighting with the fists.
The two boxers squared off when the bell rang.
stand off
To stay at a distance; stay apart.
At parties, Mr. Jones goes around talking to everyone, but Mrs. Jones is shy and stands off.
To keep (someone or something) from coming near or winning.
The soldiers defending the fort stood off a large band of Indians.
The other schools wanted to beat our team and win the championship, but our boys stood them all off.
standoffish
Stiff; aloof; reserved in manner.
The famous chess player is hard to get to know because he is so standoffish.
stave off
To keep from touching or hurting you.
The white knight struck with his sword. The black knight staved it off with his own sword.
Bill's warm new coal staved off the cold.
They staved off starvation by eating two of the sled dogs.
step off
pace off
To walk or march quickly.
The drum major lowered his baton and the band stepped off.
To measure by taking a series of steps in a line.
The farmer stepped off the edge of the field to see how much fencing he would need.
The referee stepped off a five-yard penalty against our team.
stop off
To stop at a place for a short time while going somewhere.
We stopped off after school at the soda fountain before going home.
On our trip to California we stopped off in Las Vegas for two days.
straight off
At once; immediately.
After school is over, you come home straight off, and don't waste time.
He asked his father for the car, but his father said straight off that he couldn't have it.