How do you spell Glib

Available Definitions:
1)  superl. - Smooth; slippery; as, ice is glib.
2)  superl. - Speaking or spoken smoothly and with flippant rapidity; fluent; voluble; as, a glib tongue; a glib speech.
3)  v. t. - To make glib.
4)  n. - A thick lock of hair, hanging over the eyes.
5)  v. t. - To castrate; to geld; to emasculate.