when your dick is so large that it rips your partner from her vagina to her bunghole, and your creampie runs through the uni-crack into her asshole.
"Dammit Tim, you ripped me and gave me a uni-crack!"
"It's okay Tina, I can use this opportunity to give you a River of Excellence!"
"It's okay Tina, I can use this opportunity to give you a River of Excellence!"
by jacksonbarr May 19, 2016
Get the river of excellencemug.