This emoji 🍸 shows glass with a cone-shaped upper part, mostly it is used to refer to a martini with olive on the glass side used to served cocktails or wine drinks.
The cocktail glass emoji was formed for Unicode 6.0 in 2010 and labeled in Emoji 1.0 in 2015.
🍸 U+1F378
cocktail: (Github, Slack)
cocktail glass emojiemojiemoji copy and pastewine glass