bird parachute

A trope, usually appearing in science fiction, where something directly contradictory to the pre-established science of the world happens.

Origin: The characters in K. A. Applegate's Animorphs series did a scientifically impossible (both by real-world physics and the fictional universe's) maneuver that the fandom refers to as the 'bird parachute'.

"Wow, those characters totally bird parachuted there!"