Enter a clue or pattern or both:
The Clue
No-no on office computers (4 letter answer)
The Answer
PORN
Tags
Notes
The answer PORN is seen occasionally, appearing about once every 700 puzzles.
Related Clues
Smut
Blue books
Blue matter
Feelthy stuff
Nonlibrary reading
NSFW material
Smut, for short
42d St. offering
Lewd material, for short
Lucrative Internet biz
X-rated material
X-rated, for short
X-rated stuff
YouTube no-no
Target of an X rating
V-chips block it
Definition
PORN as a noun:
1. (pornography, porno, porn, erotica, smut) = creative activity (writing or pictures or films etc.) of no literary or artistic value other than to stimulate sexual desire