a black-backed wagtail (Motacilla alba lugens)

pretty, beautiful

pretty, gorgeous, beautiful / clear, clean, pure / clean, not dirty / tidy, neat, everything put away / fair, impartial, of clear conscience

all you can drink

drinking party

to chug; to down

chugging; downing

an online drinking party; an event in which participants drink alcohol or other beverages while chatting online

(slang) communication between people drinking together

drunkard