“Don’t let your meat loaf!”
G’s father used to say this to her as a child, which is why she began saying it, too. She thinks it is funny and it reminds her of her childhood, as well as her father. She says it often and enjoys when her family members say it, as well. She says it mostly as a joke and has never considered its meaning while saying it.
My mom said this to my dad and me all the time while I grew up. She would say it when we were leaving to go somewhere, like, for example, if my dad was leaving to go to the grocery store. She would call out after him, “Bye! Don’t let your meat loaf!”
This phrase never seemed strange to me, because I heard it all the time growing up. One time, I actually looked it up and was shocked and sort of horrified to learn its very sexual meaning. I didn’t even know it was a common phrase; I always thought it was just something my grandpa made up and circulated around the family.