"So we have 2 meanings - 1) happy and jolly and 2) doesn't know what his backside is for. "

What is this obsession with the word gay and 'backsides'? Why is the assumption that gay means only affecting men? Females are and can be gay too. Not all gay men engage in anal sex either. Why does that fact never seem to be aired so much? Why are so many purportedly straight people obessesd with what gay men may or may not do with their bottoms?

There are many words used in the English language that have come to stand for the actual thing they represent but they do not get capitalised either. No biggie really, I suppose, as long as those using the word really understand what it means in it's use.

Hetrosexuality is not capitalised. Nor is bisexuality or lesbianism, unless they start a sentence or as titles, so gay/homosexuality needs no special treatment either..... except understanding and acceptance. One can even accept it without the need to understand it. Using any excuse to attempt a 'gay bashing' seems inexcusable. IMHO!

mp