The term SNORT LIKE A PIG can be summarized by the crossword solution GRUNT, which is a five-letter word. Grunting is a sound made by animals such as pigs, and is also used to describe a short, sharp sound made by humans when they are angry or frustrated. Snorting is a similar sound, but is usually louder and more forceful than grunting. Therefore, snorting like a pig can be described as a loud, forceful GRUNT.