...being a goose

Jesus dropped the F bomb just as he stepped inside my classroom door. I responded with "the look." He said, "Oops, my bad!" I said, "How about you apologize in a way that is meaningful to an old fogey like me?" He looked puzzled for a second, then his face lit up. "You're a GOOSE!" Whaaat? How is that an apology? After a bit of back and forth we communicated. He had meant to say that I was a "geezer." Goose/geezer--both start with G and have the s sound in the middle. What's one to do but laugh? (Oh, and I did get a real apology.)