The censor beep comes from broadcast television, where a steady tone was used to mask profanity and other unsuitable language so programmes could air without editing out whole sentences. As video editing became available to everyone, creators copied the same trick for online videos, reaction clips and short-form memes, where a bleep signals a joke is being hidden rather than removed. The long version is especially useful online because it can cover longer words and phrases, keeping content shareable across platforms with different rules about language.