Rawr became a popular playful sound online through anime, cosplay and gaming communities, where fans use a soft animal-like growl to signal affection, teasing or playful aggression without saying a full sentence. Short clips of this kind spread easily on short-form video platforms because they fit reaction edits, character introductions and meme captions, and listeners instantly recognise the cute-versus-fierce contrast. That combination of brevity, sweetness and attitude keeps the sound in regular use for flirty jokes, pet videos and light-hearted roleplay content.