Binnington was clearly upset on his way out and went after several Sharks players, including opposing goalie Devan Dubnyk.
Binnington was assessed a two-minute unsportsmanlike conduct penalty. Dubnyk wasn't a fan of his fellow goaltender's antics.
"I don't know why he's skating around, pretending to punch guys," Dubnyk said postgame, according to San Jose Hockey Now's Sheng Peng. "I told him to get off the ice, he's 165 pounds, swinging at guys, fake-punching guys."
Sharks tough guy Evander Kane scored two goals in the contest, including the tally that chased Binnington from the net.
"It seems like he did a lot of talking," Kane said, per NBCS Sharks. "It's too bad I wasn't on the ice for that."
Ville Husso took Binnington's place in the crease with the Blues trailing 4-3. He went on to stop 19 of 21 shots as the Blues scored three times in the third period to secure the win.