smooth (somebody’s) ruffled feathers
US /smuːð ˈsʌm.bə.diz ˈrʌf.əld ˈfɛð.ərz/
UK /smuːð ˈsʌm.bə.diz ˈrʌf.əld ˈfɛð.ərz/

1.
menenangkan kemarahan seseorang, meredakan ketegangan seseorang
to make someone feel less angry or upset
:
•
After the argument, he tried to smooth her ruffled feathers with an apology.
Setelah pertengkaran itu, dia mencoba menenangkan kemarahannya dengan permintaan maaf.
•
The manager had to intervene to smooth the ruffled feathers of the disgruntled employees.
Manajer harus campur tangan untuk menenangkan kemarahan karyawan yang tidak puas.