Big Head Boyd

It’s big. No kidding. I’m “cranially endowed.” My motorcycle helmet is 4GXL — completely spins around on my wife’s head.
I didn’t always know my head was big. My father had a big head. He told me about it. I learned to tell jokes about it. “My head is so big that when the International Space Station goes over head it has to bump to go around.”
Some people laugh. Some laugh for the wrong reasons.
That being said, this big head is never very empty. Always full of crap. A crappy head. A head full of … what’s the word(?)… “sh$t”