An online journal that is written about sexual affairs with others.
A fuck blog may include entries on how to seduce (see pick up), entries on who you had intercourse with, and ones that describe the intimate details of your own sexual adventures.

Rooshv is a fuck blog, point blank.
Person1: Hey babe, I was wondering if you would like to have dinner with me. I will wine and dine you!
Person2: Ummm, not really - because I saw your fuck blog, I'm hesitant on going anywhere with you.
by nothere24 June 14, 2016
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