Jackovasaurus
A loud, yellow, clumsy creature that can't make friends and was stuck in South Park, Colorado. It's what the people who make South Park used to mock Jar-Jar Binks from Star Wars.
My brother's a Jackovasaurus. He tried to text me and sent me a picture of a sandwich. It was a disaster.
That guy in the grocery store is a Jackovasaurus. He said 'Greetings, fellow human' to the cashier and ran out.
My neighbor's a Jackovasaurus. He tried to explain quantum physics to my cat and got kicked out.