2011-08-23
Explanation
This comic plays with a mathematical observation about the relationship between a parent's age and their child's age. The caption at the top states that there is only one day in your life when your age equals 2 times your kid's age plus 0.75, and advises you to "make the most of it." The father then uses this precise moment to tell his kid, "When I was your age, I was doin' your mom!"
The joke works on two levels. First, there is the mathematical observation: because of the way ages work, there is exactly one brief moment when a parent's age is precisely double their child's age plus nine months (0.75 of a year). At that specific moment, the parent was literally the same age as the child is now when the child was conceived. The father seizes this narrow mathematical window to deliver an inappropriate but technically accurate boast. The humor lies in the nerdy precision of waiting for this exact calendrical moment just to deliver a crude "your mom" joke that happens to be factually true.