I don't think "neat" has ever been "groovy". For me as an Australian it conveys a sense of a particularly American type of "squareness". It's almost never used

I don't think "neat" has ever been "groovy". For me as an Australian it conveys a sense of a particularly American type of "squareness". It's almost never used here, nor in the UK I think. I've noticed that Bill Gates uses it a lot and he is not particularly a model of cool. BTW, not saying don't use it. If that's who you are and that's how you speak, that's cool :)