From Longman Dictionary of Contemporary Englishrun off phrasal verb1 LEAVE A PLACELEAVE A RELATIONSHIPto leave a place or person in a way that people disapprove of Amy’s husband had run off and left her with two children to bring up.2 run something ↔ offTC to quickly print several copies of something I’ll run off a few more copies before the meeting.3 run somebody off something to force someone to leave a place Someone tried to run me off the road. Smith had run them off his property with a rifle.4 run something ↔ offAWRITE to write a speech, poem, piece of music etc quickly and easily He could run off a five-page essay in an hour.5 run off at the mouth American English informalTALK TO somebody to talk too much6 run something ↔ offDLOTHIN PERSON to get rid of weight or energy by running I’m trying to run off some of the calories in that chocolate cake! → run→ See Verb table
Examples from the Corpus
run off at the mouth• That never used to be a fault of his, running off at the mouth.• To what smug labors and running off at the mouth!• Boyd seems to enjoy running off at the mouth to the press.run-offˈrun-off noun 1 [countable]PPV a second competition or election that is arranged when there is no clear winner of the first one → play-off, → run off at run12 [uncountable] technicalSGLIQUID rain or other liquid that flows off the land into riversExamples from the Corpus
run-off• a run-off election• Noir and Dubernard both won the second-round run-offs.• The Piedmontese plain is well watered by the run-off from the Alps.• Rivers have been polluted by chlorine, phenol and detergent, together with run-offs resulting from the over-application of pesticides on farmland.From Longman Business Dictionaryrun something → off phrasal verb [transitive]1to quickly print several copies of somethingCan you run off a couple of copies of this report?2be run off your feet to be very busyIt was just before Christmas and all the sales staff were run off their feet. → run→ See Verb table 