Laverne and Shirley are decorating their Christmas tree, when a bum called Rags knocks at the door and tells Laverne and Shirley that he's bringing 36 of his bum friends with him to Frank's annual Hobo Christmas Dinner at the Pizzabowl. Next we see Lenny and Squiggy dressed as an elf and a fairy working in a department store as Santa's helpers. They're being pestered by an obnoxious little boy. Frank DeFazio whose taken the job of Santa Claus, comes in to help raise money to pay for the Hobo's dinner. The Pizzabowl has been doing bad business and he can't afford to pay for the dinner this year, hence the Santa job. Laverne and Shirley comes in after having fought a large crowd over Christmas bargains. When they see Lenny and Squiggy they burst out laughing and they pull the brat away from Squiggy who has him in a choke hold. The rumpus causes the department stores manager to come out and when he sees the commotion, he fires Frank as Santa. Laverne recognizes her father's loud voice and (thetvdb.com)