The term RAUCOUS LAUGH can be broken down into two crossword solutions, HOWL (4 letters) and YUKS (4 letters). A HOWL is a loud, long, and unrestrained laugh or cry, usually expressing strong emotion. It is often associated with animals, such as wolves, but can also be used to describe a person's laughter. YUKS is an informal expression of amusement or laughter, usually used to express joy or excitement. It is often used in response to something funny or unexpected. Both terms are used to describe a loud, unrestrained, and often contagious form of laughter.