v. To change tack with the wind crossing behind the boat. (Mostly used of boats and other small sailing craft — the corresponding manoeuver in a sailing ship is to wear.)v. To shift a fore-and-aft sail suddenly and forcefully from one side to the other, while sailing before the wind. (also jibe.)v. To sneer (see gibe.)v. gybe at: to hesitate, vacillate, or balk when faced with a proposal, plan, or course of action. (Obsolete)n. The act of gybing.n. A sudden shift of a sail's angle, or a sudden change in the direction that a boat is sailing.n. A sudden change in direction or approach; vacillation.n. A sneer. (see gibe.)