1 definition by Sgt Doom

Otherwise known as "pyschosomatic diarrhea". It is brought on by eating an unsavory meal which is suspected to be made with a different type of meat than advertised by the restaurant. Your brain will automatically cause you to become ill rectally even though there is not likely anything wrong with the meal.
"Dude I have a wicked case of PSD, that chicken roti just tasted so weird...it must have been cat."
by Sgt Doom January 6, 2008
Get the PSD mug.