Indicates regular consumption of alcohol, but not necessarily to the point of addiction. He's a social tippler, enjoying wine with dinner.
Pro Tip 2/3
Slightly Pejorative
May carry a mild negative connotation suggesting one drinks more than socially acceptable. My uncle is seen as the family tippler.
Pro Tip 3/3
Not for Formal Use
Better suited for informal conversations, might not fit in formal or professional writing. During gatherings, we often tease him for being the tippler among us.