The term 'Insurance Spokeslizard' refers to the GECKO, a five-letter character created by the insurance company GEICO. The GECKO is an anthropomorphic GECKO lizard who has been featured in numerous television commercials and other advertising campaigns for GEICO since 1999. He is known for his catchphrase, 'It's so easy a caveman could do it, ' which has become a popular meme. The GECKO is a beloved mascot for GEICO and has become synonymous with the company.