What is Chrysops?

Chrysops definition and meaning on Dictionary terms:
verb (used with object)
to toss; throw with a quick motion, usually a short distance.
Informal. to resign from; relinquish; give up: He’s chucked his job.
to pat or tap lightly, as under the chin.
Informal. to eject (a person) from a public place (often followed by out): They chucked him from the bar.

Slang. to vomit; upchuck.

a light pat or tap, as under the chin.
a toss or pitch; a short throw.

a sudden jerk or change in direction.