At the start of each episode, Laverne and Shirley are seen skipping down the street, arm in arm, reciting a Yiddish-American hopscotch chant: "1, 2, 3, 4, 5, 6, 7, 8 Schlemiel! Schlimazel! Hasenpfeffer Incorporated!" This then leads into the series' theme song which is entitled "Making Our Dreams Come True" and is performed by Cyndi Grecco.
schlemiel : an inept clumsy person; a bungler; a dolt (Yiddish shlemil)
schlimazel : a chronically unlucky person (?????? shlimazl, from Middle High German slim 'crooked' and Hebrew ??? mazz?l 'luck') (OED)
Hasenpfeffer (also spelled hasenfeffer) is a traditional German stew made from marinated rabbit or hare. Pfeffer is not only the name of a spice, but also of a dish where the animal's blood is used as a gelling agent for the sauce.