Erasing Ink With Household Chemicals. 1  1. Use acetone to erase ink. Most nail polish remover is made of acetone, and this can be used to remove ink from paper. 2  2. Try rubbing alcohol to erase ink. You can apply isopropyl (rubbing) alcohol to any paper you're trying to erase the ink from. 3  3. Apply lemon juice to your ink stain.
Definition of flop. 1 : an act or sound of flopping. 2 : a complete failure the movie was a flop. 3 slang : a place to sleep; especially : flophouse.
In electronics, a flip-flop or latch is a circuit that has two stable states and can be used to store state information. A flip-flop is a bistable multivibrator. The circuit can be made to change state by signals applied to one or more control inputs and will have one or two outputs. It is the basic storage element in sequential logic.