put/set the cat among the pigeons

US /pʊt/sɛt ðə kæt əˈmʌŋ ðə ˈpɪdʒɪnz/
UK /pʊt/sɛt ðə kæt əˈmʌŋ ðə ˈpɪdʒɪnz/
"put/set the cat among the pigeons" picture
1.

引起軒然大波, 惹麻煩

to say or do something that causes trouble or makes a lot of people angry or worried

:
His controversial remarks really put the cat among the pigeons at the meeting.
他那些有爭議的言論真是在會議上引起了軒然大波
Announcing the new policy will certainly set the cat among the pigeons.
宣布這項新政策肯定會引起軒然大波