The title is from the 1928 song "Sweet Lorraine" by Cliff Burwell and Mitchell Parish, sung by many, but most recently made popular by Nat 'King' Cole in 1940.
The call letters of the high school's radio station are WHSH. A sign in the booth says the station is "serving Harding High & parts of Ohio."
Alex (Michael J. Fox) dates a woman named Lorraine. Three years later, Fox would star in"Back to the Future" as Marty McFly, whose mother's name is Lorraine.