[1] : WordNet (r) 2.0

chat up
     v 1: talk or behave amorously, without serious intentions; "the
          guys always try to chat up the new secretaries"; "my
          husband never flirts with other women" syn: flirt, dally,
           butterfly, coquet, coquette, romance, philander,
           mash
     2: talk to someone with the aim of persuading him
see also:
flirt dally butterfly coquet coquette romance 
philander mash 

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