It's where you drink half a cup of laxative before sex during which you crouch over your partner's face and say "here comes the pain in Korean as you shit all over your partner's face.

please note neither you or your partner have to be Korean to preform this.
Kris:So rojo what did you and your girl did for valentine's day?
Rojo: well after dinner we went back to my place and she gave me the North Korean mudslide.
Kris: so how was it?
Rojo: warm and inviting
by Antonio Sabato Jr. February 17, 2008
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