chat up
US /tʃæt ʌp/
UK /tʃæt ʌp/

1.
versieren, aanpappen
to talk to someone in a friendly way because you are sexually attracted to them
:
•
He spent the whole evening trying to chat up the bartender.
Hij bracht de hele avond door met proberen de barman te versieren.
•
She's really good at chatting up people at parties.
Ze is echt goed in het versieren van mensen op feestjes.