Child asks him a question in French. Dad replies, "Hmmm. That sounds Greek to me."
I was proud of myself for this one:
Son: "Dad, what is Greece?"
Me: "A country in the Mediterranean. They speak Greek there, it's the most spoken language in the world"
Wife: "what? No it's not, that's Chinese"
Me: "Yeah, that's Greek to me"
To comfort him I sat next to him, patted his back and said, "They're, their, there..."
When teaching us spelling that you didn't pronounce the last B in Bomb. "why not Grandpa?" "It's silent, like the silent P in swimming." He got me and my younger sisters in turn.
also, he spoke fluent French and German and would claim that "I can speak every language except Greek"
"Say something in Russian."
"That's Greek to me"