Megan Rapinoe Mocks Alex Morgan Celebration Critics, 'Wah, Wah, Wah'

Team USA superstar Megan Rapinoe has 3 words for the people criticizing Alex Morgan's "tea cup" celebration during the World Cup ...

"Wah, wah, wah!"

Morgan stuck her pinky out and pretended to sip some tea after scoring the winning goal in the semifinal against England on Tuesday ... and some people considered it "distasteful."

Rapinoe -- who had her own iconic celebration after scoring against France in the quarterfinals -- is calling B.S. on the criticism ... saying, "we're at the World Cup. what do you expect us to do?"

"This is the biggest stage, the biggest moment. I don't think anyone truly believes that we disrespect the game or disrespect our opponents," the co-captain said.

"We work hard, we like to play hard and we like to have fun and enjoy ourselves and these are the absolute biggest moments to do that."

"We have the utmost respect for England and every team that we faced and every team that we will face forever and ever. That's just part of the DNA of the squad."

Rapinoe's been outspoken throughout the World Cup -- getting President Trump's attention after saying "I'm not going to the f*cking White House" ... with POTUS saying she should focus on winning.