Any day of the week when men get together and do manly things. This can include any or all of the following; making beef jerkey, shitting with the door open, talking about pussy, golfing, drinking, smoking, visiting strip clubs, watching sporting events, etc.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.

A day held on the Saturday of the NFL draft. The day typically consists of drinking a large amount, eating greasy food and placing illegal bets. Competitions, such as horseshoes, video games and beer pong are held on the day. Participants then watch the NFL draft at a local watering hole. Participants are obligated to leave wives and girlfriends at home. It's basically a bachelor party except there's no real reason for holding it. On a typical Man-day 30% of the men puke and .005% die from drinking too much.

Noun; refers to the day when a group of guys get together and forget about their problems and girls. Men only, no women. You are not allowed to text or interact with women during the time you are with your friends on man day. Rock band is a common game played on man day.

The day after Valentine's Day, To complete the day the man must drink an entire case of beer to himself, get into a fight, watch nothing but Rambo, Kung Fu, Rocky etc. Eat nothing but steak (unless it is an animal you hunted yourself)

The day that replaced monday because the manly man took it over. It is the most manly day of the week. The day is full of testosterone. It is not the day for the wimpy man.

Another word for Super Bowl Sunday. The only Sunday of the year when all men must eat a variety of animals (as close to living as possible), be waited on hand and foot by their women, get to watch TV all day, drink beer until they fart, AND call into work the next day. Blowjobs are optional but expected if your man is rooting for the winning team. The only downside: 8 woman in a room cooing over commercials.