A rotary blade lawnmower grass ejection chute device having a capability of folding up from a fully open and operating position to a partially closed or a fully closed position when the leading edge comes in contact with a fixed object. This grass ejection chute device then has the capability of re-opening up to a full operating position when the lawnmower has cleared the fixed object. This grass ejection chute device also has the capability of being fully closed and in a locked position blocking cut grass from being ejected through the lawnmower deck ejection port to allow a mulching process of cut grass clippings to take place.
