Coxcomb and Pretty boy

Coxcomb noun - The fleshy red crest on the head of the domestic fowl and other gallinaceous birds.

Pretty boy and coxcomb are semantically related. In some cases you can use "Pretty boy" instead a noun "Coxcomb".

Pretty boy noun - A man extremely interested in his clothing and personal appearance.

Coxcomb and pretty boy are semantically related. Sometimes you can use "Coxcomb" instead a noun phrase "Pretty boy".