brain-twister(redirected from a brain-twister)
A puzzle or riddle that is challenging to solve. Boy, that's a real brain-twister—anyone got any ideas for what it could mean?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. a puzzle, especially one that requires thinking. Can you help me with this brain-teaser? I can spend my whole vacation doing brain-twisters.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.