>>36408220sub·jec·tive
səbˈjektiv
adjective
1.based on or influenced by personal feelings, tastes, or opinions.
"his views are highly subjective"
synonyms: personal, individual, emotional, instinctive, intuitive
"a subjective analysis"
I find something funny that someone else doesn't, or vice versa. That is my opinion, which is subjective.
So yes, funny can be subjective you illiterate nigger.