Jack's Mum
Jack's Mum is the fancy way of saying your mum is a fat slob who eats too much and smells like old socks.
Jack's Mum? That's the best you got? I've called my uncle's goldfish a better insult.
My friend said 'Jack's Mum' to my brother and he cried.
I told my teacher 'Jack's Mum' and she gave me detention.