The etymology of this word has been lost by historians, counter-intuitively the world also is not related to physical cheese or spa treatments.
A Cheddar Facial is used for people who need to supplement their scraggly facial hair designs with donated fecal matter from others, thus enhancing the luscious nature of an artificial mane.
Chichael- Bro, I have been trying for weeks to grow out facial hair to make me look like the evil burger king, but since I am a little boy in a mans body my facial hair comes in patchy and thin.
Chonny- I can help you with that, best friend, let me give you a Cheddar Facial!
::pluck puck, pinch pinch, draw draw::
Chichael- Wow Chonny thanks! Now I really look like my favorite fast food character!! and I smell just like your ear pit!