Someone who enjoys a wide array of beverages. Especially beverages not commonly consumed by others.
Did you notice John drinking an orange juice, apple juice, and a coffee? Such a bevhead.
Someone who enjoys drinking different types of beverages. Especially ones that others don't normally drink.
A beverage connoisseur of sorts.
Did you see John drink a coffee, bloody mary, and orange juice during breakfast? He is such a bevhead.