Schnerdling
Slang term for a restroom, courtesy of Tom and Ray from CarTalk. Pronounced "SHNURD-ling", and based on a mis-read of the word "Scherdling", which was seen on a bathroom sign in Iceland.
"I need to go use the Schnerdling"
"I have to go take a Schnerdle"
"I have to go take a Schnerdle"