WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a person who drinks alcoholic beverages (especially to excess)
Word Usage
"Nor could Polly's later explanation that the last word was "happy," and not "drunk," reconcile him; for she had been compelled to admit that the old king was a toper, and that he was always in his cups when he struck up the chant."