Having a nightmare but in the day, so it's just a mare since it's in the day.
Basically, another way of saying you're having a living nightmare, ie you're in a really shitty situation.
Today's been AWFUL. I thought my English Literature exam was in the afternoon, but it was actually in the morning. I missed the exam, and now I've been told I've been held back. It's like all my exam-anxiety nightmares came true! I'm truly having a mare!
Often used when things have gone completely tits up and you have no control over what the fuck is going on.
Small "mares" are usually caused by physics practicals, but larger ones are usually due to women.
The Ultimate Mare: Going out with a fit girl for two years, splitting up while living with her, sleeping with her friend, sleeping with ex again a few weeks later, pulling another of your ex's friends a few weeks after, then telling your ex the gory details including the fact that you did not play it safe with either and that she may now have got de baad AIDS.
1. Select a player (real or fantasy) during a sports draft to spite or anger one or more of your opponents because they had intended to select him/her.
2. Select a player (real or fantasy) during a sport draft to put one or more of your opponents at a strategic disadvantage.
1. Billy hate drafted Chad OchoCinco because he knew Sam had wanted him since he is from Cincinnati. Billy already had plenty of players to fill that position but wanted to make sure Sam didn't get him.
2. Billy hate drafted Peyton Manning because he was the only good quarterback left and he knew Sam had been planning on drafting him.