Possibly an ellipsis of "Could you come again with what you just said?" "Come again with what you just said."
- (idiomatic, informal) Could you repeat that? Repeat that please. a polite formula used when one has not heard or understood what has been said
An ellipsis of "Please come back for another visit"
- (idiomatic) Used as a polite farewell to a visitor, inviting a return visit.
- Often used in retail stores and service establishments, especially in hotels and restaurants
alternate, be here again, circle, come and go, come around, come round, come round again, come up again, copy, cycle, ditto, do a repeat, do again, do over, double, duplicate, echo, go back, go back to, imitate, intermit, keep coming, oscillate, parrot, plagiarize, pulsate, pulse, quote, reappear, recur, redo, redouble, reduplicate, reecho, regurgitate, reincarnate, renew, reoccur, repeat, reproduce, resound, resume, return, return to, reverberate, revert, revisit, revive, revolve, roll around, rotate, say again, turn, undulate, wheel, wheel around