Disclaimer: …. It should be obvious.
America giggled as he looked at France across the table. A glance a few seconds later resulted in a new wave of chuckles. This continued for the entire meeting. Later, France confronted America on the matter. "And what, may I ask, is so funny, Amerique?" America laughed, not his normal guffaws that could be heard on the other side of the globe, but a normal-person laugh. "Well, I was reading an Encyclopedia of World History, and it... Said..." America's grin widened with each word he said, and soon he was trying hard to repress his utterly loud, groundbreaking laughter. "It said you were named after Franks!" That was it. America couldn't take it anymore, and collapsed, one arm on the wall and the other on his stomach, heaving as he attempted to breathe through the great guffaws that were probably being heard on the moon. "F-Franks, hot dogs- HAHAHAHAHAHA!" France gave a raised eyebrow, but didn't question anything. He walked off, leaving America to fall off the wall and curl up on the floor, still laughing.
"What would Angleterre say... Ah, yes. 'Bloody Useless American,' I think." Somewhere, a certain green eyed Englishman in a black cloak (he was trying to curse somebody here!) sneezed, interrupting his spell.
... Not sorry, and I'm hungry. Random plotbunnies that hit as you're reading the Encyclopedia of World History in the car on a five hour car trip... Here's what the book said.
"Under their first great leader, Clovis, the Franks spread out from their homeland around the river Rhine (in what is now Germany). They fought their neighbors, such as the Visigoths and Burgundians, until by 540 they had conquered most of the old Roman province of Gaul (modern France, which is named after the Franks)."
I wrote this on the car trip and just now got around to publishing it.