The icon is a wine glass. The glass is a classic tulip glass that you would put wine into, underneath the tulip part that would hold some wine or other liquid in it is a narrow stem. Within the glass is some liquid.
This is a Bar Filled icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,100 icons, all in the same style and quality.