A dirty wizard is when you have anal sex with a female or male and just as you're about to cum pull out and cum on their face while saying a spell from Harry Potter ie (Expelliarmus, Avada Kedavra) also please note you have to be dressed up as a wizard if not it's just dirty
A cocktail only drunk at after parties and originally named after a particularly douchey and dull Harry Potter lookalike. The cocktail is made from three ingredients: Jack Daniels, Robinsons Summer Fruit Cordial and tonic water. It is disgusting.
"What did you throw that Dirty Wizard away for, you rotten bitch?" "I'LL FUCKING MAKE YOU ONE IN A MINUTE!"