FOXBORO, MA - SEPTEMBER 3: Bill Belichick , coach of New England Patriots, talks to the media after a pre-season game with the New York Giants at Gillette Stadium on September 3, 2015 in Foxboro, Massachusetts. (Photo by Jim Rogash/Getty Images)

Typically monotone Bill Belichick cracked a sex joke leading up to the Super Bowl

The head coach of the New England Patriots channels his inner Eddie Murphy.

Bill Belichick channeling his inner Eddie Murphy? Believe it.

That's what happened Friday when the normally stoic head coach of the New England Patriots joked about so many of his players having birthdays so close together.

(Wait a minute. I just used Bill Belichick and joke in the same sentence. That's a first.)

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Here's what happened:

Now, "must have been something going on nine months ago, in those years" isn't exactly comedy gold, but for Belichick, that's side- splitting stuff.