Etymology: Unknown, Year 2003(?), Coined by Charles Matthews in Shape Up
There is a key shape (normally good shape) that doesn't have a Japanese name, and hasn't been christened in English - up to this point (...which was several years ago, and the name seems to be pretty widely accepted in english now, as of October 2009 .) Sometimes called a "loose mouth" due to similarity to the Mouth shape or loose bamboo joint, due to similarity to bamboo joint.
Here's an example from a game in which I (Charles) was taking a handicap from a pro. Black wants to cut White. There are several ways to do this. and make good shape, because now White a, Black b would be the table shape.
Ear point contains another example of using the table shape.
Good shape though it is, the table shape does have some vulnerabilities if there are stones of the opposite color nearby. In this diagram Black might feel that the two white groups have been separated. Note that the marked stones form a table shape: