The phrase heroine hoer combines the Dutch word hoer, meaning whore, with heroine, and is used online as an intentionally crude insult rather than a literal description. Clips labelled with Boris circulate on soundboards as short voice reactions, shared for the blunt delivery and the recognisable name tag. Its popularity comes from how quickly it registers, even for viewers who do not speak Dutch, making it a reusable punchline for memes, edits and trolling replies where a normal reaction would feel too mild.