Are you the wino of your friend group?
Basically, it looks like a regular wine glass except there is a cover on the “top” and the stem works as a straw.
I had my friend round and I had already poured the glass of wine before she arrived. When she saw my glass of wine upside down, she looked horrified she thought I was going to get the wine all over the White table cloth. It was red wine as well….As soon as I piicked up my glass of wine and started drinking it from the base, she just laughed out loud. She couldn't believe I had an upside down glass of wine.