Colorado Hot Geyser
The sexual act of ejaculating into a partner's anal cavity and then farting out the semen. A woman who perfects the action is known as an Old Faithful.
Darnell: "Damn, that was an explosive Colorado Hot Geyser!!!"
Traci: "Thanks, hon. They don't call me an Old Faithful for nothin'."
Traci: "Thanks, hon. They don't call me an Old Faithful for nothin'."