O.T. Genasis -- Swimming in Drunk, Twerking Groupies (VIDEO)

O.T. Genasis got caught in a blizzard on Hollywood Boulevard -- a parade of white chicks who followed him out of a club and showed NO SHAME ... partying with him on the street.

The wild after-party went down outside The Argyle around 3 AM, and here's all you need to know -- O.T., 5 super fans (probably super drunk), short skirts, lots of twerking, an inflatable dinosaur and an amazing soundtrack courtesy of a sax player. Think sidewalk slow jams.

O.T.G.'s description of one of the girls says it all, "Her name must be Simba, 'cause she got jungle fever!"