Jason Biggs Apologizes For Malaysian Airlines Crash Joke -- NOW I'm Sorry

Jason Biggs is tucking his digital tail between his legs -- hours after blasting people who took offense to his Malaysia Airlines crash joke ... he's backing down and apologizing.

Biggs tweeted his mea culpa moments ago ... saying he's deleted the crash joke from his page because he didn't mean to offend.

Perhaps understanding how strange his sudden 180 sounds ... Biggs said, "No one is making me send these [apology] tweets- I simply understand that my comments might have come off as insensitive and ill-timed. For that, I apologize."

Jason added, "Sending positive thoughts to the victims and their families."