Viagra Overdose

Listen here, you chucklehead. You, Alastor, probably think that because Viagra is for boners, a guy dying of a Viagra overdose means he had a really long boner! You’re not totally wrong, but you’re not totally right. The real joke is about the fact that a boner can cause an erection, and a casket is usually closed so the visual is kinda funny. The joke is suggesting the guy's boner was too big for the casket.