butter up
US /ˈbʌt.ər ʌp/
UK /ˈbʌt.ər ʌp/
1.
cirer les bottes, amadouer
to flatter someone in order to gain a favor or special treatment
:
•
He tried to butter up his boss before asking for a raise.
Il a essayé de cirer les bottes de son patron avant de demander une augmentation.
•
You'll have to butter up the teacher if you want a good grade.
Tu devras amadouer le professeur si tu veux une bonne note.