Otohiko is a self-invented pseudonim, contrary to what some may think (it's a perfectly valid Japanese name, but no, it's not referring to any anime characters or anything).
I like to think that it has all sorts of meanings. The two kanji it's composed of -
OTO - sound; noise (also associated with music)
HIKO - typical japanese male name ending (roughly meaning something like 'lad')
My favorite translation of it is "noiselad".
In all honesty though, I didn't even know what it meant when I came up with it. I just liked the sound.
The previous pseudonim I briefly used before it was "Otoko no hito" (meaning "man" in Japanese).
My other known pseudonims include Sparky, CCIP, Heptaparaparshinokh, Trogoautoegocrat and George (I guess you can call it a pseudonim, since the name I was born with was Gheorgiy Andreevich).
The Birds are using humanity in order to throw something terrifying at this green pig. And then what happens to us all later, that’s simply not important to them…
Another reason I used it.
. the "D" and "H" stand for Death Himself. Sounded cool, I gess.
You can see pic of him in my profile that one my friend draw, because i cannot draw like him 
