A TearoffMenuItem is a special MenuItem which is used to tear off and reattach its menu.

When its menu is shown normally, the TearoffMenuItem is drawn as a dotted line indicating that the menu can be torn off. Activating it causes its menu to be torn off and displayed in its own window as a tearoff menu.

When its menu is shown as a tearoff menu, the TearoffMenuItem is drawn as a dotted line which has a left pointing arrow graphic indicating that the tearoff menu can be reattached. Activating it will erase the tearoff menu window.

 |  GObject
 |   +----Object
 |         +----Widget
 |               +----Container
 |                     +----Bin
 |                           +----Item
 |                                 +----MenuItem
 |                                       +----TearoffMenuItem