I've just started translating to my navite language the movie "Ice castles (1978)" and I found the sentence in the title. Here is some context: 

A girl and her mom are watching an hockey match (one of the players is the girl's boyfriend) and at a given point it looks like the players are starting a scuffle; so the mom says this: 

"Come on you pansies, get in there! No! Don't check with your goddamn wrists! Let's have a little blood flow on that ice!"

What could the sentence in the title mean here? Thanks in advance!