Re: Cynical sense of humor
Cynical humour is in my understanding the group of jokes that are based on the irony, misfortune and morbid topics, none of which are designed to make you laugh. Rather the response is likely to be a chuckle which morphs into a sobbing.
Alternatively it could also be a signal from a person who is cynical about humour and never tries to be funny, which means the person is not funny and never attempts to be so.