It's December 2, Movember is over, time to rid your face of that mustache you've been growing in the most painful way possible. Okay, the pain part is really up to you, you could just trim it and then shave it off like a normal human man, OR you could follow the steps that Mehdi Sadaghdar took to remove his.
Mehdi decided to torture his upper lip and remove his mustache one painful step at a time using wax, electrocution, a kitchen knife, and fire. Assuming you don't want your face to be a burnt and bleeding, but just smooth and hair free, a razor is probably your best bet.