Translation:The man is smart.
Is it just me, or do I remember this adjective because 똑똑 sounds like you hitting your head
Thanks! I will use that! To remember 뚱뚱하다, I just remember that I am fat.
When I studied Korean in Seoul my teacher used to come and knock us on the head whenever we got a difficult question right and say 아, 아주 똑똑하다!
I have heard 똑똑 on chats is used as knock knock. So probably you are not far from the truth :-D