On a Form header, what is the three bar icon called?

The icon composed of three stacked horizontal lines, located in the header of a form or list, is universally known in user interface (UI) design as the "Hamburger icon." In the ServiceNow platform, clicking this icon reveals the "Additional actions menu," also referred to as the form context menu. While the menu has a functional name, the question specifically asks for the name of the icon itself, for which "Hamburger icon" is the correct and most common term.

A. Pancake icon: This is an incorrect term; "pancake icon" sometimes refers to an icon with three stacked dots, not lines.
B. Additional Actions or Context Menu: This describes the menu that appears after clicking the icon, not the name of the icon itself.
D. Cake icon: This is a fabricated and incorrect term for this UI element.

1. ServiceNow Product Documentation - Using the Mobile Agent app: In the section describing the app's navigation, the documentation explicitly states, "Tap the hamburger icon (...) to open the drawer." This confirms official use of the term. (ServiceNow Product Documentation, Tokyo Release, Mobile Apps and Platform > ServiceNow Agent > Using the Mobile Agent app).

2. ServiceNow Product Documentation - Form context menu: This document shows an image of the three-bar icon on the form header and refers to the menu it opens as the "form context menu." This supports the distinction that Option B refers to the menu, not the icon. (ServiceNow Product Documentation, Tokyo Release, Now Platform user interface > UI actions > Form context menu).