tight ass


Also found in: Idioms.
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tight ass

n. Vulgar Slang
A person who is rigidly conventional.

tight′-assed′ (-ăst′) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.