If it weren’t a bad word

On our way home from getting his Covid vaccine Oliver says “If the F word weren’t a bad word I would say it right now. ” I asked him why he would want to say that. He responded “Because we have been in the car forever! Or I would say this word. It starts with a C. ” I was racking my brain thinking what bad c word would fit the scenario. “It starts with a C. Then I’ll say the rest of the word ok? C rap. Yeah I would say the F word or the C word.” To be fair what should have been just over a 2 hour trip , had ended up taking about 4 hours instead.