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Phrase(s): I’ll look you up when I’m in town.
Fig. I will try to visit you or contact you the next time I am in town. • Bill: I hope to see you again sometime. Mary: I’ll look you up when I’m in town. • Andrew: Good-bye, Fred. It’s been nice talking to you. I’ll look you up when I’m in town. Fred: See you around, dude.
McGrawhill's American Idioms And Phrasal Verbs