"I know it like the back of my hand"

Posted by Smokey Stover July 12, 2005In reply to "I know it like the back of my hand" posted by Sky on July 12, 2005

What is the meaning of "I know it like the back of my hand"?

I really think I know the back of my hand very well. But it's right in front of me a very large percentage of the time, so the saying presupposes that one know's the back of one's hand very well. Hence, to know "it" that well is to know it very well indeed. SS