(which means he is too fat)
"You [messed] with the wrong sedentary processed-foods eater!" Smith, posted on Twitter.
It was one of many Tweets recounting the actor/director's humiliating expulsion Saturday from the Oakland-to-Burbank, California, flight.
Southwest said in a statement airline officials had called Smith to offer their "heartfelt apologies," but also stated his removal was for the "safety and comfort of all customers."
Smith, 39, originally purchased two tickets "as he's been known to do when traveling Southwest," the airline noted, but when he decided to fly standby on an earlier flight, only one seat remained.
After Southwest seated him, they then asked him to leave.
"If a customer cannot comfortably lower the armrest and infringes on a portion of another seat, a customer seated adjacent would be very uncomfortable and a timely exit from the aircraft in the event of an emergency might be compromised if we allow a cramped, restricted seating arrangement," Southwest said.
Smith, says, "I know I'm fat," and he was in no mood to accept an apology when the airline gave him a $100 voucher when he arrived in Burbank on a later flight.
"I broke no regulation, offered no 'safety risk' (what, was I gonna roll on a fellow passenger?)" he tweeted.
"I saw someone bigger than me on THAT flight! But I wasn't about to throw a fellow Fatty under the plane as I'm being profiled. But he and I made eye contact, and he was like 'Please don't tell...'"
After landing in Burbank, Smith wrote, "Don't worry: wall of the plane was opened and I was airlifted out while Richard Simmons supervised."
After a storm of angry online comments from Smith and his fans, the airline issued an apology first from its own Twitter account and later in a statement on its website titled Not So Silent Bob, a jovial jab at the Silent Bob character Smith plays in many of his films.
"We would like to echo our tweets and again offer our heartfelt apologies to you," the statement said.
The airline said it also accommodated Smith on a later flight, gave him a $100 voucher and apologized by phone.