The Three Stooges were a comedy trio in 20th century Earth, led by Moe, who were featured in their own series of movies which were widely shown on television. They were well known for their physical, slapstick humor.
In 1957, the Vulcan explorer Stron wore his hair in a style that reminded one boy of Moe. Mestral, apparently familiar with the cultural reference, agreed there was a resemblance. (ENT: "Carbon Creek")