A member of Generation X: a 25-year-old self-proclaimed champion of the X-ers(1990s+)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source
Idioms and Phrases with X-rated
Sexually explicit, vulgar, or obscene, as in This film should be X-rated; it's not suitable for children. This expression alludes to a rating system established for motion pictures, in which films rated X may not be viewed by persons under the age of 17.
[ c. 1970