what is the meaning of this???

I usually associate the term with the fatigue associated with surfing porn sites for five or six hours.

Very good, Octopus. Excellent, in fact!

These terms can mean anything you want them to mean or they can mean nothing. Fleshed-out is just some ridiculous term some reviewer thought up to confuse when trying to describe what a piece of audio gear sounds like. I personally like the term 'slow woofer' or 'slow subwoofer'. Woofers by nature and design ARE slow. If they were fast they would be tweeters.

Jim

Related to your question: I've always been uncertain as to what the term "fast" means with respect to an amp. I know what the reviewer means, but I swear I don't think I've ever heard it. I mean, if the amp is fast, won't the music be playing too fast, or not having the right harmonic decay, or something else unpleasant? Also, if the amp is "fast" can it also be "fleshed out?" Also, everything you hear depends on the particular recording you are listening to. Some of them are faster or more fleshed out than others! Reviewing is a weird, weird, business, yet we all read reviews. I mainly read them to see what components the reviewer A/B'd or otherwise compared the component in question with. If I've heard the comparative component, I can get a sense of whether I'd like the component being reviewed. But it's all so arbitary, as we all know. Nevertheless, over the years I've actually solved various problems I've had with the sound I was getting out of my system, so reviews, comparisons, and descriptive terms have all been helpful to me.