"The peach is in the fridge."
Translation:Tá an phéitseog sa chuisneoir.
Because of the climate, peaches don't grow well in Ireland. Even in Gaeltacht areas, people often do much of their shopping outside of that Gaeltacht, so it wouldn't necessarily be unusual that they think in English about things that they only encounter occasionally in the supermarket. If that person really likes peaches, and always buys them when they are available, they would probably use the Irish term.
Becky lives an a place where peaches are far more common, and not just in supermarkets.