An almightyhangover with no recolection of how it was acquired. From acronym; breen - Beer Related Event Eliminating Neurons.
1. "the events of the previous night were breened by alcohol"
2. "last night breened all hope of functioning the next day"
3. "too much beer breens as sure as night follows day"
4. "he/she is recovering from a breening. It could take days"
5. "beer is responsible for his/her breened state"