1) an expression of contempt, disinterest, or
boredom, often used in the phrase "Well la dee da" as a sarcastic "now isn't that
amazing" or "good for you"
2) a phrase for singing, humming, mumbling etc. to show joyful
innocence
1) Bob: You know what? I learned that the sky is blue today!
Bill: Well la dee da.
2) The little girl skipped along singing "La dee da, what a wonderful day!", until she was unfortunately
run over by a garbage
truck.