The other side to this is that ahh for ass is an eye dialect for certain AAVE lects (e.g. in this version of "Crank That" by Soulja Boy, "I'm jockin' on yo b#### ahh")
Incidentally, I saw a short by Unsightly Opinions today where she was talking about cutting food as a blind person, but she couldn't say either "cut" or "knife", and thus circumlocuted them as "make food smaller" and "implement". I'm reminded of Oceanian name taboos, except instead being a product of worshiping ancestors it's a product of worshiping The Algorithm.