Wikipedia
Do-Wacka-Do
"(And You Had a) Do-Wacka-Do" is a song, released in 1965, by American country music artist Roger Miller. The expression "do-wacka-do" is a funny way of saying "do-like-I-do".
The song expresses envy in a humorous way. The lyrics are written like a letter to a friend or possibly a former friend ("I hear tell you're doing well, good things have come to you...") with whom the singer would like to trade places ("I wish I had your good luck charm, and you hadda do-wacka-do, wacka-do, wacka-do, wacka-do, wacka-do").