recherchez un mot, comme eiffel tower :
 
1.
Used when trying to say "I don't frankly give enough of a damn to consider which you should choose, ask someone else." in a polite way.
Guy1: Should I listen to A or B?
Guy2: (indifferently and nonchalantly) Up to you.
Guy1: -.-
de derpderpderpherp 23 janvier 2011