homemade word
tom: sorry i didn't understand that, what did you say?  david: oh, sorry, it was a homemade word
those words invented at home, and used in the family but don't have a meaning outside of the family or friendship group
"tom: sorry i didn't understand that, what did you say?  david: oh, sorry, it was a homemade word" What is the definition of "homemade word"?