The USA women's water polo team took the party from Paris to Sin City this month -- jetsetting to Vegas following their run in the Olympics -- and their hype man and sponsor, Flavor Flav, was right there by their side for the festivities!!
Maggie Steffens, Rachel Fattal and the rest of the American squad got back to the States after finishing fourth in the Games ... and one of their first orders of business for some of the women was to let loose in Nevada.
The athletes -- plus Flav -- hit up Resorts World on Saturday night .