Slang for an erotic magazine, frequently a well-distributed glossy monthly, generally featuring soft-core pornography in the form of nude pictorials ("photo spreads") and short fiction.
The "stroke" in "Stroke Book" is the frequent use of such
periodicals to achieve sexual fantasy, arousal, and usually
solo sex, that is, manual stimulation or masturbation to orgasm on
the reader's part. The focus of such magazines is usually to highlight nudes of one specific gender in the pictorials, not both, and the perspective of one gender as narrator of a graphic erotic encounter in the short fiction.
.
"Hey, Sis, can I borrow your copy of
nudie magazine? I need a stroke book, if you know what I mean."
--
"Okay,
Leslie, but
bring it back afterwards and don't get the pages stuck together!"
