butt-ugly vs loathly

butt-ugly

adj

  • Extremely ugly. 

loathly

adj

  • Loathsome; hideous. 

adv

  • Unwillingly; reluctantly. 

  • In a loathsome manner; disgustingly. 

How often have the words butt-ugly and loathly occurred in a corpus of books? (source: Google Ngram Viewer )