An sexual act in which you find yourself at the top of a staircase engaging in doggy style. The female must be on her hands and knees. When you see that she is near her climax, knock the arms out from beneath her and ride down the stairs. If you feel the need you may scream "Ya Mon!" when you yourself reach climax. Works best with red stripe beer.
"My girl has been afraid of the staircase ever since that night I pulled out the Jamacian Bobsled on her.."
the jamaican house guest is when a girl is riding a guy, and suddenly a random jamaician enters the room, squats over the guy, and shits on his chest, then leaves without saying a word
"Colleen and Francis told me that they encountered the jamaician house guest last night."
"Last night I was fuckingCon, and someone gave me the jamaician house guest," said John