look up any word, like cunt:
 
1.
An Anus Soda is when you do a handstand and let someone else put a funnel into your anus and pour in soda. Then, you sit down, masterbate furiously, and before you have an orgasm, you open your anus and let all the soda drip down as you cum. Afterwards, someone else is to lick it all up and/or lather it into their genitals and skin.
Beth: "Whats your favorite sexual activity?"

Rob: "I enjoy doing the Anus Soda so much."
by analoo June 21, 2010