shit on shingles

Sausage gravy on toast

My dad was in the army for 24 years and my mom use to make this for him. I love the stuff. The navy uses chipped beef but I prefer the hamburger version.
Here is an official U.S. Army recipe for SOS:
CREAMED BEEF ON TOAST (SOS)
1/2 lb. ground beef
1/4 tsp. salt
1/4 tsp. pepper
4 tbsp. sifted flour
1 cup evaporated milk
1 cup water
2 tbsp. butter
Brown ground beef in its own fat. Remove excess fat and save for making roux. Season with salt and pepper. To make roux, place 2 tbsp. reserved fat in double broiler or heavy pan. Slowly add sifted flour, stirring constantly over low heat until thoroughly blended. Cook for five minutes. Do not brown. Combine milk and water. Add butter and scald (not burn) in double broiler or heavy pan. Add roux to scalded milk, stirring constantly until thoroughly blended. Add meat mixture and cook about 10 minutes, or until desired consistency. Serve on toast.

Dried crusty shit flakes at the top of someone's ass crack who doesn't wash their ass.

creamed chipped beef on toast

WWII troop slang for chipped beef on toast, frequent fare in mess halls.

Having anal sex with an unclean ass.
Upon completion, one finds a turd atop his penis. This act is directly responsible for the "Dirty Sanchez".

When fucking an unclean asshole, it is very possible to remove your dick, covered with your partners shit. This problem is best solved by wiping your partner's face with said shit covered member. Resulting in a dirty sanchez.