"I get my sense of structure from my dad, and my sense of humor from my mother. She has a mouth like a trucker," David Lindsay-Abaire said in a 1999 interview with Time magazine. The playwright is from "Southey," the same colorful area of Boston that Matt Damon and Ben Affleck captured in their hit flick Good Will Hunting, and Lindsay-Abaire, too, has recently been sucked from his blue-collar past into the film industry, handed a five-year TV-and-film contract by 20th Century Fox last year. What attracted the attention of the Hollywood magnates? A little play called Fuddy Meers, in which a woman named Claire has a rare form of amnesia that erases her memory whenever she goes to sleep. The off-Broadway hit is half-mystery, half-comedy, a whodunit in which the main character tries to reassemble her whole life from the fragments a single day offers her. Manbites Dog presents this "funhouse-ride comedy" on Dec. 14-17, 19-22, 26-30 and Jan. 2-7; all shows are at 8:15 p.m., except Sunday shows at 3:15 p.m. Call 682-3343 for details.