rub someone out

rub out

1. To erase, remove, or destroy. A noun or pronoun can be used between "rub" and "out." Janet stealthily rubbed out their names and wrote ours on the application instead. You'll need a powerful cleaning solution if you want to rub that stain out from the carpet.
2. slang To murder someone. A noun or pronoun can be used between "rub" and "out." They tried to rub out the witness before he could testify, but the police intervened and saved her life. They're going to rub Manny out if he doesn't step in line.
See also: out, rub

rub someone out

tv. to kill someone. (Underworld.) The gunman was eager to rub somebody out.
See also: out, rub, someone