1 definition by BentOver
A sex act involving four people, in which everyone is engaging in sexual acts with each other. Two males and two females together in which the males are not participating in sex acts together can NOT be called a true foursome, it would be considered a swap.
Holy shit I had a foursome with two hot chicks and this one dude last night...
No way! Lucky fuckin guy.
No way! Lucky fuckin guy.
by BentOver March 24, 2007