If you have ever been in a locker room, people talk like that constantly. It is called metaphorically speaking. People use to do this all the time before the age of offending people for looking at them the wrong way. If you take his quote literal, then there isn’t much I can do to convince you otherwise. For example, When the Clemson football team went to the White House and it was quoted “there were enough hamburgers to stack a mile high” which was obviously a metaphor to express that there were a lot of hamburgers there, some people actually thought it was a literal statement and even fact checked this quote to break down that 300 hamburgers at 3 inches wouldn’t stack up to a mile high?!?!?! At some point, to fit a narrative you can take ANY quote or action to twist it to fit your liking to help your argument. “Kill the head and the body will die” was used as a rally cry prior to that game and will be used as long as there are sporting events.