5 males performing Sexual Acts on 1 Female.
Everyone knows that any combination of 3 sexual partners (2 Guys and a Girl, 2 Girls and a Guy) is known as a threesome or a three way. But what is 5 Guys and one girl? Well 5 Guys reminded us of a Basketball Team so when 5 guys are performing Sexual Acts on 1 girl it is referred to as WNBA'ing. "Yo, me and my 4 buddys WNBA'd that chick last night."