when something is so fucking good, nothing can come after it.
Tim: Man, that porno was awesome!
Connor: Tell me about it! That's dunsun, right there!
by tim808 February 03, 2009

10 Words Related to Dunsun

1. To be completely finished with someone or something

2. To abruptly end a conversation or diss without the chance of a rebuke

This phrase was originated from the best spring break cruise EVER...DUN SUN!

"Guys, I just dropped a huge shit in the bathroom...DUN SUN!"

"The neighborhood just ran a train on your mother...DUN SUN!"



by C-Rizzo & J-Diddy February 08, 2009

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