(noun) a person who is very difficult to put your finger on; he/she often displays seemingly contradictory behavior which make said person's motives very difficult to decipher
John's always hitting on girls, but whenever they flirt back he gets all offended and says he has a girlfriend. That SOB's a real Severus Snape.
by toomuchHP July 16, 2011
The son of Harry Potter and Ginny Weasley. He has one brother, James Potter (named after his late grandfather), and one sister, Lily Potter(named after her late grandmother). He is named after two late headmasters of the wizarding school, Hogwarts, Albus Dumbledore, and Severus Snape, both of whom held close relationships with his father, Harry Potter. Last we heard, he was entering his 1st year of Hogwarts, and very worried that he might be placed in the Slytherin house instead of the preferred Gryfindor.
by Harry_PotterFan69 February 22, 2009
Someone who is a creepy loveable fangirl admin who obsesses over books and Michael C. Hall and created the ship Hexter.
You're such a Harry Severus Snape!
by Amber Pierce-Bennett-Herondale October 20, 2013
The new hot couple of harry potter slashs, making them the second most popular couple in fanfictions right behind Harry and Draco, their fathers!
by Cassie_333 February 5, 2008
The stupid jerk that ruthlessly murdered Dumbledore, and who deserves to be raped by Hagrid and thrown in a pit full of Blast-Ended Skrewts.
Harry: That motherfucker Snape better not step on my turf or I'll bust a cap in his ass
Ron: Hellz ya!
Ron: Hellz ya!
by MaryBeth11 July 20, 2005