Is there a word in English that describes the feeling or thinking that a joke is funny, but really bad (i.e. groan-worthy) at the same time? For example, most puns cause many people to groan, but they might also make the same people laugh momentarily ("It's not that the man did not know how to juggle; he just didn't have the balls to do it.").
If not that, is there a word that describes such a joke?