Can I use "lardy-dardy" to describe a man's gay lisp and gesture? If this is not OK, I have three more questions.
- How else can I ever use lardy-dardy?
- Which word should I be using instead?
- Is there a new generation of buzzwords to use?
As far as I understand, "lardy-dardy" only really refers to being extraordinarily elegant. I believe you may be looking for "flamboyant" or "camp". "Camp" is a modern word to describe stereotypically gay behavior.
There's a possibility that there really are (were?) two ideas here.
Lardy by itself means grand, rich, swell.
A Dictionary of slang and Colloquial English, John Stephen Farmer, William Ernest Henley (c) GoogleBooks Preview