There are two wine glasses that appear to be half full and there is a line coming out of the top to depict clinking of the glasses as when people "cheers" or "salud" each other.
This is a Champagne 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 13,700 icons, all in the same style and quality.