1 definition by Disappointed Weasley

Noun:
Possibly the biggest cum-dumpster in Harry Potter, with the obvious exception of Dumbledore, who got sperminated by at least fifteen guys and got abortions for all of them except the Ginger fatass.

Verb:
To correct an inaccuracy in grammar during sex.
Ex:1
Guy 1: Hermione's a total slut.

Guy 2: Well yeah but not as much as Dumbledore.

Guy 1: Well that goes without saying.

Ex:2
Guy 1: So how'd things go last night?

Guy 2: Real good at first... But then she totally Hermione'd me. I yelled "Who are you fucking!" and she was like, "That SHOULD BE WHOM! WHOM ARE YOU FUCKING" And after that I developed ED.

Guy 1: Don't you mean "Really WELL at first?"
by Disappointed Weasley January 7, 2011
Get the Hermione mug.