a wolf in sheep's clothing
US /ə wʊlf ɪn ʃiːps ˈkloʊðɪŋ/
UK /ə wʊlf ɪn ʃiːps ˈkloʊðɪŋ/

1.
kuzu postuna bürünmüş kurt
a person who appears friendly or harmless but is actually dangerous or malicious
:
•
Be careful of him; he's a wolf in sheep's clothing.
Ona dikkat et; o kuzu postuna bürünmüş bir kurt.
•
The new manager seemed nice at first, but he turned out to be a wolf in sheep's clothing.
Yeni yönetici başta iyi görünüyordu ama kuzu postuna bürünmüş bir kurt çıktı.