Quoting GuestMale cat stud jowls are a maybe similar "flappy thing" hanging off the face that both may be known and unknown to a large proportion here, they tend to stop developing when a male is neutered, seem to have relatively little feeling and are surmised to primarily serve as face protection during mating fights.

Big stud jowls picture on the scale of the early Garfield comics:

https://cat-world.com/what-are-tomcat-jowls/