look up any word, like plopping:
 
1.
it means cigars or a car ( used only the upper classes had cars).
I want to smoke some fat cuban la-di-da.
by pablo bvs December 02, 2007
 
2.
I love you. Usually used when you feel saying it would be inappropriate. Or unnecessary.
crush: *smiles*
girl: la di da..
by qwerty_ja June 23, 2009