Tux

Shortening.

Full definition of tux

(plural tuxes)

2013, Russell Brand, Russell Brand and the GQ awards: 'It's amazing how absurd it seems' (in The Guardian, 13 September 2013)http://www.theguardian.com/culture/2013/sep/13/russell-brand-gq-awards-hugo-bossAfter a load of photos and what-not, we descend the world's longest escalator, which are called that even as they de-escalate, and in we go to the main forum, a high ceilinged hall, full of circular cloth-draped, numbered tables, a stage at the front, the letters GQ, 12-foot high in neon at the back; this aside, though, neon forever the moniker of trash, this is a posh do, in an opera house full of folk in tuxes.