Some1 who invented spells at hogwarts, killed dumbledore and was called Snape
Person1: Snape is the Half-blood prince
Person2: Rally? Y U Tell Me! >.<
Person1: cos u didnt know he kills dumbldore!
person2: ARGGGG! the plot is ruined!
by 1AM1337 July 18, 2005
Get the mug
Get a half blood prince mug for your mom Yasemin.
A textbook (usually old) with lots of very helpful writing on the inside of it.

The name comes from the sixth Harry Potter novel/movie.
Joe: whoa, look at my copy of Hamlet, it explains what they're saying!
Bob: looks like you've got a half-blood prince book
by mrbattleman November 28, 2010
Get the mug
Get a half-blood prince book mug for your mama Sarah.
This is a great 6th book in which Severus Snape kills Dumbledore, on page 606, go ahead and read, great book, oh yeah, and dumbledore dies, snape kills him.
Harry: Hagrid..Snape..killed Dumbledore
Hagrid: Wha' Harry?
by Reaperus July 17, 2005
Get the mug
Get a Harry Potter And The Half Blood Prince mug for your Aunt Larisa.
Harry Potter And The Half Blood Prince is the book in which Dumbledore dies and the wizarding world comes to an end as we know it.
Harry Pottter Fans *reads Harry Potter And The Half Blood Prince*
Dumbledore *dies*
Harry Potter Fans *omg*
by goofuffle May 26, 2006
Get the mug
Get a Harry Potter And The Half Blood Prince mug for your mate Bob.