The phrase "I make you wet in the butt" means some one is really hot/sexy and you feel a tingling sensation in your butt while also feeling like it's moist.
"That guy makes me so wet in the butt."
"I make you wet in the butt"
Game two or more people play together where they take turns coming up with clever insults involving gay jokes, and always ending with the word Rooster Butt! The person who cant come up with a rooster butt joke is then considered the rooster butt until a new game starts.