Noun
A liquor made only from the malted barley of a single distillery, unblended with other liquors.
Short for single malt whisky, or single malt scotch.
Source: en.wiktionary.orgAfter doing extensive research, I can definitely tell you that single malt whiskies are good to drink. Iain Banks
Yeah, tell me I'm a bottle of single malt scotch, she thought. That's the way to my heart. L.J. Smith