Having sex when with a girl on her period. The sheets are bloody.

A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.

The back of a taxi cab or car the morning after hitting the late night drive thru - littered with half eaten burgers and french fries....

A place where there is lots of visible evidence of the presence of a filthy tart that has come on and doesn't clean up after herself. Whether this be bedsheets soaked in menstral blood, or more common to find, a ladies loo with pints of blood on the walls, bog and floor and bloody bog roll blocking the bog itself.

When you are having sex with a girl with the lights off and you think she is super wet for you, but then when it's over you get up and turn on the lights, and it looks like someone was murdered in your bed because she was on her period. CSI in that bed!

Menstrual bloodplay.

What a chick would say instead of "rubbing one out" when it's that time of the month.