Definition of make up to in English:

make up to

phrasal verb

British
informal
  • Attempt to win the favour of (someone) by being pleasant.

    ‘you can't go on about morals when you're making up to Adam like that’
    • ‘I bet she was making up to the master.’
    • ‘Harry made up to her shamelessly.’
    flirt with, chase after, run after, pursue, make romantic advances to, court, woo, vamp
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