Dim-witted and Yo-yo

Dim-witted adjective - Not having or showing an ability to absorb ideas readily.

Yo-yo and dim-witted are semantically related In some cases you can use "Yo-yo" instead an adjective phrase "Dim-witted".

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

Dim-witted and yo-yo are semantically related in limited topic. Sometimes you can use "Dim-witted" instead an adjective phrase "Yo-yo".