My House is Your House.

There is a Spanish saying 'Mi casa es tu casa.' meaning what it says above. My wife,being an independently minded Irish redhead, substituted the Gaelic word for my, 'mo', for the Spanish 'mi'. One of her stock phrases, designed to end any argument, is "This is mo Casa." meaning trilingually, "This is my House."
Following a domestic tiff about me cluttering up her domain I retired to my shed in a huff. As a sardonic joke I amused myself by making this sign.
About a month later she found it and when I explained the context she insisted that I put it on the wall. She is quite proud of it although it wouldn't be my best work by any means. She wouldn't allow me to make an improved version. All the neighbours think it's a Russian reference.
Have any of you guys got unusual family phrases that have become part of your identity?