FIL-thee fur-NAN-dez. N. The after-effect of a dirty sanchez
, wherein the male is left alone in his depressing bachelor pad with prominent poop stains left on his tie, pillowcase and toothbrush. Finding herself "sanchezed," the female has stormed out in outrage, but only after using the male's pillowcase and cheap tie to clean her face, depositing the tail end of a poop on his toothbrush, and texting a photo of the entire mess to the male's mother.
"John left her alone in his bedroom to write a triumphant letter to Penthouse Forum about his successful 'dirty sanchez,' but his mood was deflated when he returned to find she had left him a 'filthy fernandez'."