I love this line because it is so ridiculous...Baby's family is simply sitting at a table when Johnny comes in. And actually, I think the table is round anyway...but I digress.
He could have simply said, "Come dance with me." But that would not have been nearly so memorable, right? When he says, "Nobody puts Baby in a corner," he is really saying that she matters and that is all she wanted to hear. Then they dance...love it!
This line is usable in real life all the time. When someone backs you into a corner literally or figuratively you can come back with, "Nobody puts Baby in a corner!" It works, try it!
"Nobody puts Baby in a corner."