* to throw the house out the window
Slang used all the time by Adults
To spare no expense for something and therefore spend too much money on something. Especially used for celebrations e.g. birthdays or weddings.
"Ellos tiraron la casa por la ventana en su boda."
"They threw the house out the window at their wedding."
Added August 2020 by ale
4 out of 6 Spanish speakers have heard this