Men in Black II (2002)

Continuity mistake: When Frank the dog is growling at the agent in the park his teeth are fine but later talking to Zed he is told he can have better dental. He smiles and his teeth are horrible. (00:23:50 - 00:31:10)

Agent Jay: Could I have your attention, please? [Neuralyzes the crowd.] Thank you for participating in our drill. Had this been an actual emergency, y'all would have been *eaten*. 'Cause you don't listen! You're ignorant! How's a man gonna come crashin' through the back of a subway win - that's the problem with all y'all New Yorkers!"Oh no, we've seen it all!" "Oh no, a 600 foot worm, save us Mr. Black man!" I ask you nicely to move forward to the next car, y'all just sit there like... [Neuralyzes the crowd again.] The City of New York would like to thank you for participating in our drill. Hopefully you enjoyed our smaller, more energy-efficient subway cars. Watch your step, you all have a nice evening.

Trivia: The first alien in the mail room that Will Smith starts to talk to in alien language is a rapper known in real life as Biz Markie. He is really making those noises with his mouth. (00:28:35)

Question: I don't get the joke where K pokes his finger inside the alien globe and the little alien guys running away from it screaming, "All is lost." Can anyone tell me the meaning?