I Drink, You Drink
It's when you and your buddy take turns taking swigs of beer like you're fighting for your life. You say 'I drink' and take a swig. You then say 'you drink' to your friend. They do the same. This goes on until you're both crying and drunk.
At the bar, Tom said 'I drink' and took a big swig. Then he said 'you drink' to his friend, and he had to do the same.
During a Zoom call, my friend said 'I drink' and took a sip of his coffee. He then said 'you drink' and I had to finish my cup.
In the car, my friend said 'I drink' and drank his soda. Then he said 'you drink' and I had to chug mine.