Have you heard of“B.Y.O.”?
B.Y.O. means Bring Your Own drink or food with you.
This is a common expression in New Zealand and Australia.
You can see this word at the restaurant door, mostly used in small restaurants instead of buying their liquor.
You can also see it when receiving an invitation to a barbeque or dinner party.
You can experience B.Y.O. if you travel to New Zealand or Australia.