mod. alcohol intoxicated. (See also pepped (up).) : No more. She's done. She's perked up for good.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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WordNet
perked up
adjective
made or become more cheerful or lively; "his attention made her feel all perked up"