This is a drawing of a wine glass that is most of the way full. Going from top left to bottom right there is a line going across the wine glass probably to say no alcohol is allowed.
This No Alcohol icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,700 icons, all in the same style and quality.