Cacaburn 

Excremental stains found in the back side of a person's underwear.

Synonym: skid mark

He took of his underwear and found cacaburns staining the inside. Disgusting.

Cacaburn by Moridin.Darko June 30, 2014

cacabarn 

an excalamtion derived from the words caca (doodies) and barn.
Can also be used as a nickname. Not related to the literal meaning.

On a roller coaster
"CACABARNNNN!!!!!!!!!!"

"hey, cacabarn, how's it goin? Dude, I did not steal your bubblegum, will you just let it go already?"

cacabarn by Julia Marino May 17, 2006