Yusuke's last name, Urameshi, is pronounced Yur-a-mesh-i throughout the English dub of the show, while it's supposed to be pronounced, Oo-ra-me-shi.
Botan's name is a joke, a reference to the length of the sleeves of her kimono. Botan, in Japanese, means sleeves or cuffs on clothing.
While the title of the series literally translates as "White book of Melancholy", or "White book about Ghosts", it was changed to Poltergeist Report and Ghost Files to be more catchy for American audiences.
The title "Yu Yu Hakusho" is a play about Yusuke Urameshi's name.
Kuwabara's name is a combination of two of Yoshihiro Togashi's favorite baseball players.
Kurama and Hiei are both mountains in Japan.
suke Urameshi: Getting blown to pieces is really gonna piss me off!'
wabara: Hey! Why are are you making me glow?
suke: I don't want you to think I'm weird but would you please please kiss me!
suke: I just happen to be a spirit detective!
suke: Mother you just don't wallop an injured person!
nster: You see children its not so bad. You can all play together in my stomach.
suke: Of course I heard you. I'm just stupid. wabara: Monster meet my spirit gun!
tan: He looks more sad than evil.
suke: He has a bizarre rose whip.
nkai: If your father found out, you wouldn't be able to sit down for decades.
iko: I guess he wasn't joking about the hair.
tan: Hes swinging his sword witht he grace of a fly swatter. Thats no way to survive.
ei: Do you think he knows its a circle in which he's running?
suke: Excuse me but I don't like this monster beast donut. Do you have one with chocolate and sprinkles?
