Usually phrased as "Stuff your sorries in a
sack, mister!", it basically means "your apology is not accepted".
Originally used by the character Oscar Madison in the tv show "The Odd Couple" in the episode "Strike Up the
Band... Or Else" (S5E6
October 17, 1974).
Later popularized by the character of George Costanza in the tv show "Seinfeld" in the episode "The Betrayal" (S9E8 November 20, 1997)
FELIX: I'm sorry I snapped at ya
Oscar.
OSCAR: Stuff your sorries in a sack, mister!
MURRAY: Hey that's a good one
Oscar!
JERRY: (To George) I said I was sorry.
GEORGE: You can stuff you sorries in a sack, mister!
JERRY: Would you please stop saying that?!