Former Twitter CEO Dick Costolo compares meeting with Trump to waterboarding

Dick Costolo has been critical of the president before.

In fact, Costolo equates attending one of the president's meetings to physical torture.

In response to a tweet Friday night about an unconfirmed upcoming White House meeting with tech leaders -- similar to the one the president hosted in December -- Costolo wrote, "If you don't get invited to this meeting and want to know what it was like, just drink a bottle of gin and then waterboard yourself."

The current CEO of San Francisco-based fitness start-up Chorus, Costolo has taken to Twitter before to express his disdain for the commander in chief.

And in March, Costolo tweeted, "Trump is such a wimp. He cowers from any fight, points fingers in a loss but takes credit for any win. A coward, a loser, a two-bit punk."