Sometimes boys say things they really shouldn't. Or they blurt out stuff and they realize what a bad idea it was. Some examples from the "grown-up" boys in my life:
"Remember what your hairdresser said about your natural colour being beige? Yeah...it's time to dye again."
"Women don't want honesty. They think they do, but when they get it, they realize that actually they just want the fairy tale."
When you are only a little boy, though, the things you say are just cute.
While helping me clean bathrooms: "I pee upstairs. Only Daddy pees down in this toilet. So.....this must be Daddy's mess." sigh. "I guess I better teach Daddy how to aim his penis better."
While playing poker with the entire family: "I want YOU to win this hand, Mummy, since you are losing so much."