Definitionen
1.NounA type of knife that with the press of a button, allows the blade to drop out of the handle, and then quickly opened up full, for quick use, also allowing it to be flicked open with a flick of the wrist.
A folding knife of this type.
A telescoping knife of this type.
2.NounA folding knife of this type.
3.NounA telescoping knife of this type.