When you put butter into your pets asshole and get an erection. Most of the time you lick it afterwards.
by Los Rico's August 21, 2015
Dirty Agustin is when you non consensually butt fuck someone while in a plane in front of the flight attendant who asks you if you want peanuts as she watches in horror because she notices you already have all the peanuts you need from the rips the anal sex has left....
by Anxei June 23, 2020