wise guy
US /ˈwaɪz ˌɡaɪ/
UK /ˈwaɪz ˌɡaɪ/

1.
pandai sangat, orang yang berlagak pandai
a person who is irritating because they think they know everything and try to be clever
:
•
Don't be such a wise guy, just answer the question.
Jangan jadi pandai sangat, jawab saja soalan itu.
•
He always has a sarcastic comment, a real wise guy.
Dia sentiasa ada komen sinis, memang pandai sangat.