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Idioms and Phrases with all shook up

all shook up

Greatly disturbed or upset, as in His letter left her all shook up. This slangy idiom uses shook instead of the grammatically correct “shaken” (for “agitated”) and adds all for emphasis. [Second half of 1900s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.