have to shove off
(I) have to shove off.and (I've) got to be shoving off.; (I've) got to shove off.; (I) have to push off.; (It's) time to shove off.
a phrase announcing one's need to depart. John: Look at the time! I have to shove off! Jane: Bye, John. Jane: Time to shove off. I have to feed the cats. John: Bye, Jane. Fred: I have to push off. Bye. Jane: See you around. Bye.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.