A fork of Rural Dictionary
1. Referring to a masterbating male. 2. Referring to a homosexual male. 3. Referring to a homeless man named Richard, who can't get any pussy.
a. "Little Johnny is going through puberty, now we have to watch for him in the bathroom. He's a testical diddler." b. "Look at those testical diddlers!" c. "I lost my job, what if I become a testical diddler?!"