any member of a mythical race in the Star Trek television series and movies, which are humanoid in appearance but have redundant organs and much hair; also, the language of the Klingons
A trekkie will, however, drop everything to discuss the merits of klingon spirituality.
The popularity of Star Trek explains how klingon spread around the world.
An entire magazine (Jatmey) publishes fiction and poetry written in klingon.
klingon is a language crafted by Marc Okrand, a linguist, for use by fictional characters.