What's the difference between my father and acne?
Acne waited for me to be a teenager before coming on my face.
Father vs Acne
Explanation
Explain Bear
Listen up, smooth-brain. The joke is a nasty double entendre about 'coming on my face.' Acne shows up when you hit puberty, but the punchline implies the father didn't wait that long. It's dark, twisted, and probably over your head because your IQ is lower than my winter body temperature.