The crossword solution for the term 'RIB AT A ROAST' is TEASE, which is a five-letter word. Teasing is a form of humor that involves making lighthearted jokes or comments at someone's expense. It is often used in roasts, which are events where people make fun of each other in a good-natured way. Roasts usually involve a roastee, who is the person being teased, and a roaster, who is the person doing the teasing. The rib at a roast is the joke or comment made by the roaster.