1. Cheap liquor or alcohol. You must really want to get drunk tonight if you keep drinking that conk-buster—it's disgusting!
2. A challenging situation or problem. Well, that's a conk-buster—I don't know if a mathematician could even solve it!
Farlex Dictionary of Idioms. © 2022 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.