No one on Cumtown has ever said the n-word, ironically or otherwise, at least on pod. The bit is always that they almost say the n-word (which is an incredibly rare bit), or it's a bit about guy talking about how he was promised 'n-less' shrimp (again another one off). For like, edgy borderline to possibly crossing the line racist stuff, they were far more likely to play around with the bit that Adam has a big black son, or other incredibly dumb race-related bits than ironic slurs, though they do make fun of New York Italians a lot.
You're thinking of like idubbbz. Nick specifically is more likely to joke about how much white people love saying the n-word.