The term 'excessively masculine' can be described as MACHO, which is a 5-letter word. MACHO is a Spanish term that is used to describe a man who is overly confident and aggressive in his behavior. It is often associated with traditional gender roles and stereotypes of men being strong and dominant. This type of masculinity is seen as a sign of strength and power, but it can also be seen as oppressive and damaging to both men and women.