Idioms and Phrases with upside the head
upside the head
Against the side of someone's head, as in With those nightsticks the police are known for knocking suspects upside the head. [Slang; 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.