"The Crabfish", (known also as "The Sea Crabb") an English folk song dating back to the mid-1800s about a man who places a crab into a chamber pot, unbeknownst to his wife, who later uses the pot without looking, and is attacked by the crab. Over the years, sanitized versions of the song were released in which a lobster or cray grabs the wife by the nose instead of by the genitals or that imply the location of the wounds by censoring the rhyming word in the second couplet. For instance, "Children, children, bring the looking glass / Come and see the crayfish that bit your mother's a-face" (arse).
A Boston-area ban on Upton Sinclair's novel Oil! - owing to a short motel sex scene - prompted the author to assemble a 150-copy fig-leaf edition with the nine offending pages blacked out as a publicity stunt.
The counting rhyme 'Eeny, meeny, miny, moe', whilst originally containing the word 'nigger', is now taught with a replacement word, such as 'tiger'
Many Internet message boards and forums use automatic wordfiltering to block offensive words and phrases from being published or automatically amend them to more innocuous substitutes such as asterisks or nonsense. This often catches innocent words also: see Scunthorpe problem. Users frequently self-bowlderize their own writing by using slight misspellings or variants, such as 'fcuk' or 'pron'.
Chinese internet filters - the Great Firewall - also work to block politically-sensitive terms and characters from being published on most public sites or loaded by domestic ISPs.
The video game South Park: The Fractured But Whole was originally going to have the name The Butthole of Time however, marketers would not promote anything with a vulgarity in its title, so "butthole" was shifted in with the homophone "but whole"