brain-teaser(redirected from a brainteaser)
A puzzle or riddle that is challenging to solve. Boy, that's a real brain-teaser—anyone got any ideas for what it could mean?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.