Ochinchin is a word used by young Japanese children, mostly boys, to refer to a penis. It's usually used in an innocent, teasing context. In true shota, it is used a lot.
In the shotaanime Pico to Chico, Chico remarks that his ochinchin feels funny, after watching his sister masterbate.
The mighty Chin-Chin's (FilthyFrankShow) Japanese name is "ochinchin" (also a Japanese slang term for penis) and "Ore wa ochinchin ga daisuki nandayo" basically means "I fucking love Chin-Chin" or "I fucking love dick".
The sentence is used by Chin-Chin and it's basically all the words he's ever spoken.
Salamander man playing assflute in the mighty assflute language: Franku, OMFG it's that fucking cunt Chin-Chin again.
Franku-Chan: Oh no.
Chin-Chin: Ore wa ochinchin ga daisuki nandayo.
A word that is used to describe something that is totally lame, or really sucks. This word can also be used to describe a person who is acting lame or annoying. This word is usually used to make fun of something or someone. (See examples below.)
Friend 1: What'd you get for your birthday?
Friend 2: Some book...
Friend 1: Haha, wow that's chinchinjewitz!
Friend 1: Yo, you coming out tonight?
Friend 2: Nahh, my parents won't let me.
Friend 1: Wow, that's chinchinjewitz.
Mother: Johnny wants to know if his friends can come over.
Father: No, he has been being chinchinjewitz all day.
Friend 1: Eww, what the hell is that?
Friend 2: I don't know, but it's chinchinjewitz!