IPA: /ˈbliːpər/
KK: /ˈblipər/
A device that makes a beeping sound, often used to censor or signal something.
The bleeping sound from the bleepers indicated that the message was being censored.
Bleeper → The word is formed from "bleep" (an imitation of a sound made by electronic devices, often used to indicate a warning or alert) and the suffix "-er" (meaning a person who performs an action). A bleeper is a person or device that makes a bleeping sound, typically to signal or alert.
Think of the sound 'bleep' that alerts you, and remember that a 'bleeper' is someone or something that makes that alerting sound.