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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Abusive online poster, and a literal interpretation of 14-/16-, 25-, 30- and 52-Across 15 letters:

KEYBOARDWARRIOR: Abusive online poster, and a literal interpretation of 14-/16-, 25-, 30- and 52-Across