Here's some maledicta from Hearst's Magazine, 1913. How many can you decode? We've translated them as follows:
The circle overlapping an asterisk, followed by three exclamation points, means "asshole."
The D with a period means "damn."
The lopsided M with its four strokes means the four-syllable "motherfucker."
The lopsided H with its long cross stroke is a very cross "Hell."
But what about the I and question mark? We couldn't find a single list of swear words that included any beginning with I. Yet the letter I is in itself a swear word. "'I' is a curse: 'I' is the labeled 'I' of oppression and condemnation. 'I' feels itself superior to other 'I's" (Lily Splane, "Elegy for the 'I,'" Quantum Consciousness).