What's (something) when it's at home? British humorous spoken informal
Used when you have no idea about something is discussed or you ask, require to know the meaning of a sophisticated word and simplify it.
What's the meaning of his present when it's at home? I can't guess.
Have you ever heard of arugula? What's it when it's at home?
I have no idea about laws of attraction. What's it when it's at home?
Many sources point to the sixteenth century for the origin of this phrase.
Used to to emphasize that attention is paid to the individuals who complain or cause problems
Sometimes, you shouldn't be so quiet because the squeaky wheel gets the grease.