2 definitions by fsara

The one day during the menstrual cycle when you are in such pain that when you stand up, it actually feels like the uterus is falling out.
No, I can't go to aerobics tonight......I'm having a total U.F.O. day!
by fsara April 10, 2004
Get the U.F.O. day mug.
The act of cunilingus. It just sounds better than saying "he ate me out", and you can talk about it at work with your close friends without any old people getting offended.
Oh, I SO got 'the good thing' last night!
by fsara April 10, 2004
Get the the good thing mug.