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general::
Phrase(s): (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.
McGrawhill's American Idioms And Phrasal Verbs