letterhacked

Verb

letterhack (third-person singular simple present letterhacks, present participle letterhacking, simple past and past participle letterhacked)

1. (dated, slang) To write letters to periodicals very frequently.
   • It was in those letter columns that I was first exposed to the concept of fandom. Letterhacking was in high bloom in 1951; the letter columns were filled with chatty letters from all sorts of people, the names of whom I soon came to recognize.1976 November, Ted White, “Twenty Five Years? That's--”, in Science-Fiction Five-Yearly, number 6, page 23

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