EXAMPLES FROM THE WEB FOR SLOW UP
Mr. Payton hesitated, giving the command to slow up, nevertheless.
“We can slow up a bit again in a few minutes,” said the stranger.
You can't afford to slow up the play by waiting for your end to get to you.
Some one called: "Slow up there, now," and then the door opened.
Have to slow up because the head wind is filling the scows with water.
The train began to slow up—perhaps we were to be saved, after all.
When in Cheyenne he was on his last legs—had begun, as they say nowadays, to slow up.
This caused the Confederate lines to slow up in their advance.
You have a rotten tendency to slow up at the line, just when you should be going the hardest.
The rule for all divers, therefore, is "slow down, slow up."