I'd knock the back out of that! - A way to say you're so eager to get into a woman, you'd take

A way to say you're so eager to get into a woman, you'd take her out like a punch to the gut.

He saw her at the bar and said, 'I'd knock the back out of that!' to his friends.

He messaged his crush, 'I'd knock the back out of that!'

At the party, he yelled, 'I'd knock the back out of that!' to a girl walking by.