Yes there have been people who have drank a whole bottle of maple syrup.
Maple Syrup can be drank from the bottle or even poured into a cup and then you can drink the maple syrup from a cup.
I used to drink a whole bottle of maple syrup throughout the day myself and I loved it but if I drank too much at one time like I did before when I drank a whole bottle of maple syrup within a few minutes my stomach started hurting because of all that sugar.
There have also been people who chugged down a bottle of maple syrup for a contest.
Maple syrup can be healthy for you but it does contain a lot of sugar so if you're diabetic you need to watch how much of the maple syrup you drink or eat.