How about a summary of Post-Flop lines?

[IGMorton]

Can anyone spare the time to give a fairly clear definition of what a few post-flop lines refer to? This should help avoid repeated questions from newcomers as well clarify discussions for more experienced players. A simple paragraph summarizing how and why the common lines are used would be appreciated.

-Way ahead / Way Behind
-Stop and Go
-Free Show Down
-Rope A Dope
-etc...