The nickname given to the Potions master of Hogwarts, Severus Snape, by his childhood enemies, The Marauders (James Potter, Remus Lupin, Sirius Black, and Peter Pettigrew)
by ab529 February 15, 2009
A very deadly disease, which causes the hair of the person infected to be greasy all the time. The infected person never washes their hair, and develops a hatred for shampoo.
'Hey, I noticed that guy has pretty greasy hair. It looks like he hasn't washed them in ages.'
'He must have caught the snivellus.'
'He must have caught the snivellus.'
by wash your hair kids! May 25, 2021
by Khiodi G December 20, 2017