If you're paying top dollar, then that ain't good.
It does have imperfections, but if it's structurally sound and in the lower
price range, then I'd say it's OK.
Probably made using loose-tenon joinery.
Dawkins coined the phrase quite some time ago. It has evolved in many directions since the 70s.
A cartoon, a caricature , photo with a caption...I'm sure my brief explaination doesn't do it justice.
There's probably a Google entry on the subject. ;)