Difficult Brown 

The process of giving it to someone up the butt.

A 2011 quote from Sinead O'Connor's blog:

"Let me now take time to make VERY clear that yes I 'do anal' and in fact I would be deeply unhappy if 'doing anal' wasn't on the menu, amongst everything else$$ So if u don't like 'the difficult brown'.. Don't apply..."

Difficult Brown by rebornfungus September 5, 2011

Difficult brown  

Euphemism taken from the world of snooker. Descriptive of that time of the month where a girl has "the decorators in", as in............

I am snooked behind a red and all that is left on is a Difficult brown

Difficult brown by sciross scoross October 11, 2007

difficult brown 

not being able to 'pot the pink' due to time of month, so one must go for the 'difficult brown'

Ewwww your bleeding ... turn around

difficult brown by PsychoPoo0_o February 14, 2004