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1 definition by TheWanAndOnly

 
1.
When a person can't get himself to talk about a certain ongoing subject (normally on chatrooms) and is put in a awkward situation, where some might expect a reaction from him and he goes,

"dun dun."

It comes from "so done with this". Usually related with Otaku culture for some reason.
Person 1: I just raped this bitch so fucking good, i swear i did.

Person 2: Hahaha so funny!

Person 3. o.o.. dun dun
by TheWanAndOnly December 19, 2013