(n): acquired immune deficiency syndrome (AIDS)

a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles

Micro marriging is when your partner manages your personal day-to-day tasks with you much like a Micro Manager at work.

A sex position where a dildo and a light switch is needed closed by. With the lights off proceed to have doggystyle sex with a woman and with a swift David Copperfield-esque motion, pull-out and stick the dildo in her so she thinks you are still in her. Then walk around to her front, switch on the lights, punch her in the face and yell, NINJA!!!

A Transmitted Disease Which Is Acquired By Either Having Sex Or Getting In Contact With An Infected Persons Blood aka The Ninja

The act a man pulls off when lying in bed with a woman fingering her and then slips his dick in so fast she never has a chance to say she didnt want to go that far.

When you're jacking off in lecture hall, and a fat chick near you has her ass crack hanging out, you procede to blow your load in her crack while making a sneezing noise.

A raging case of herpies. They are called the ninja's because they sneak up on you when you least expect it, and put a hurtin on you...