3 definitions by MIF's baby
Sexual position when you are doing a woman from behind and you yell out math problems like "What is the square root of 4, bitch?" and "what is 5+5, bitch?" You fuck her harder and harder to try to get her to get these simple problems wrong.
by MIF's baby February 27, 2007
Sex without a condom. Named after Phil Collins' album "No Jacket Required."
No use of condom.
When my girlfriend told me she was on the pill, I asked her if we needed to use a condom of if we could go Phil.
No use of condom.
When my girlfriend told me she was on the pill, I asked her if we needed to use a condom of if we could go Phil.
When my girlfriend told me she was on the pill, I asked her if we needed to use a condom of if we could go Phil.
by MIF's baby February 27, 2007
Slang for having sex with woman who has her period because after you are done having sex, you will leave blood droplets on the sheets or floor. Thus leaving evidence behind!
I approached my girlfriend for sex, and when she said she had her period, I said I was ok with some CSI action.
by MIF's baby February 23, 2007