Men Overs, or "MENOVERS!" as they are often called, are not homo-sexual events but are sometimes referred to as such due to the level of comfort shown between each man involved. This actually stems from years of friendship which can create a Men Over style bond of trust.
Traditionally all of the men taking part will wear a pair of Long Johns, either throughout the event, or as sleep wear. This is not mandatory however, especially if partaking in a Men Over in a warmer climate.
The term "men over" originates from a phrase sometimes used in football commentary where it refers to a moment in play when one team has players free in space on the opposite side of the pitch from the player with the ball.
Person A: "We haven't all got together in ages, what do you fancy doing?"
Person B: "Men Over?"
Person A: "MEN OVER!"