"a child of a first cousin of one's parent"
That's second cousin to you and me. Did you ever wonder who your second cousin was? No? Don't worry, my friend Beth and I wondered for you. I had only two hours sleep last night, so I was perhaps more easily baffled than usual. But Beth got a good, solid night's sleep and she was every bit as confused as I was.
We started by scratching out this illustration to help us think:
It turned out the paper was way too small though, so we had to get a bigger sheet:
It's not pretty, but by substituting names of people we actually know, not only did we attain a vague sense of the relationship, but we got to have conversations such as this one:
"So here's Grammy. You see? That would be like...
That would be like...
Well that would be...
And this one, also between me and my daughter:
"Is that me?"
"Yes. That's you."
"Yes. The one that that says 'You are here'"
"Why do I have short hair?"
In conclusion and apropos of nothing, here's an illustration of the surprises of parenthood summed up in 15 seconds: