Peter Griffin is the loud, impulsive father at the centre of Family Guy, the long-running animated sitcom, and his over-the-top impressions are a regular source of meme audio. This horse bit works because it is pure Peter: noisy, childish and performed with total confidence. Shared as a short clip on soundboards and in video edits, it has become a handy shorthand for goofy sounds and ridiculous behaviour, especially when a creator wants a reaction that feels sillier than a normal laugh or gasp.