from the GNU version of the Collaborative International Dictionary of English
- transitive v. to utter; to speak in an abrupt or harsh manner; as, to fling out hard words against another.
- intransitive v. to become ugly and intractable; to utter sneers and insinuations.
Sorry, no etymologies found.
He rolled, bouncing from one outcrop to the next, until he managed to fling out an arm and grab on to a scrubby thornbush.