To provide alleviation to prevent someone from slamming into the ground at full speed.

(informal, intransitive) To laugh uncontrollably.

(idiomatic) To wind up in an unexpected situation which is, inadvertently, invisible to or not handled by whatever process one had hoped to be subject to; to be overlooked.

(intransitive, dated) To be destined to happen to someone or to fall in someone's possession.

Third-person singular simple present indicative form of bottom fall out

(idiomatic) Of something desirable, to be received by someone with little or no effort or by chance.

Third-person singular simple present indicative form of fall from grace

(dated, idiomatic) To embrace someone affectionately or thankfully.

(idiomatic) To become the possession of, or be discovered by, an unfriendly third party.

colony collapse disorder