The Brief: BYOE stands for "bring your own everything."

DEEP DIVE
A spinoff on BYOB β bring your own beer, BYOE is a way to tell party guests to bring their own supplies. This may include alcohol, drugs, or food. BYOE sometimes refers specifically to ecstasy or energy drinks, but the “E” most often stands for “everything.”
Why do people try to charge for house parties, when itβs byoe. Wack, what we doing paying rent for the night? π
— Selena Maria Santos (@SelenaMSantos) December 10, 2018