Every word of the year from 1990 to 1999, according to the American Dialect Society, aka the words of the 1990s.
Also check out:
Words of the 2000s (American Dialect Society): • Words of the Decades: 2000s (American...
Words of the 2010s (American Dialect Society): • Words of the Decades: 2010s (American...
Xennials: • What is a Xennial?