"Gassers" is a colloquial term often used to describe something that is funny or entertaining. Some synonyms for this word include "side-splitting," "hilarious," "uproarious," and "laugh-out-loud." Other words that can be used to describe something that is amusing include "jocular," "comical," "droll," and "witty." If something is particularly hilarious, it can also be described as "riotous," "rib-tickling," or "side-splittingly funny." Whether it's a movie, TV show, or a joke from a friend, there are plenty of words you can use to describe something that leaves you gasping for air from laughing so hard.