The line comes from The Big Lebowski, the 1998 crime comedy directed by Joel and Ethan Coen. Early in the film, intruders mistake Jeffrey “the Dude” Lebowski for a wealthy man with the same surname and demand money connected to that man’s wife. The confrontation establishes the mistaken-identity plot and the film’s blend of menace and absurdity. Short excerpts later became useful reaction audio online because the blunt question works naturally with jokes about debts, missing funds, unpaid tabs, and questionable spending.