tux
noun
1.
semiformal evening dress for men
Origin
Coined by James Hughes as a short form of Torvalds Unix (after Linus Torvalds), perhaps also influenced by tux, referring to the tuxedo that penguins are sometimes humorously said to be wearing.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.