Muttonhead and Yo-yo

Muttonhead noun - A stupid person; these words are used to express a low opinion of someone's intelligence.

Yo-yo and muttonhead are semantically related. In some cases you can use "Yo-yo" instead a noun "Muttonhead".

Yo-yo noun - A person who lacks good sense or judgment.

Muttonhead and yo-yo are semantically related. Sometimes you can use "Muttonhead" instead a noun phrase "Yo-yo".