Gallagher (born Leo Anthony Gallagher, Jr., on July 24, 1946) is an American comedian and prop comic, known for smashing watermelons as part of his act.
His signature sketch is the “Sledge-O-Matic”, a large wooden mallet that Gallagher uses to smash a variety of objects, most famously, watermelons. In addition to the Sledge-O-Matic, Gallagher’s act features a variety of props, including a large trampoline designed to look like a couch.
While the Sledge-O-Matic act is an example of physical prop comedy, the act itself (and even its name) is a parody of ads for the Ronco Veg-O-Matic, a kitchen appliance that was heavily advertised on American television from the mid-1960s through the 1970s. Gallagher also uses word play in his act, pointing out the eccentricities of the English language.