u take a ram then add an a. then mix it together and get a lam. then add another a. then ding dong ditch ramalama!!
The Edsels ;-)
You must have heard this on Edsel's 1957 song "Rama Lama Ding Dong".
I believe it's a variation of the word ramalamadingdong. Whatever it means, I'd like to shake the hand of whomever put the bab in the babalabashingdong.