DOODDS

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WAT DOES DESU MEEEN

desu is the sound two japanese characters make. The two characters are usually used when something is being described.
For example;
boku wa bureiko desu.
I am Blake.

Desu, informal form of de gozaimasu, is a copula verb which indicates the existence of something/one, basically it is the equivalent of 'to be'.

An internet phenomenon originating from 4chan related to Suiseiseki.

Whats with the picture?