This green screen clip features a small dog (often a Boston Terrier or French Bulldog mix) wearing a novelty hood or costume that makes it look like a cartoon dinosaur or dragon. The dog slowly turns its head, giving an intense, suspicious, and highly judgmental side-eye or “sus” look directly into the camera. The contrast between the silly costume and the dramatic, serious expression makes the meme widely versatile for conveying skepticism or suspicion.