Definition of "slam-bang" [slam•-bang]

• Slang With force and much noise: drove slam-bang through the barricade; a slam-bang collision. (adverb)
• Slang With heedless speed; slapdash. (adverb)
• Slang With vigorous relentless action and pace: a thriller that proceeds slam-bang to its conclusion; a slam-bang movie car chase. (adverb)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Carlo Jr. recently turned part of the building into a fancy micro-beer retail shop, which his father thinks is a slam-bang idea."
• "As directed by David Kaplan (who did such an nice job with 2008's Year of the Fish), Today's Special takes the softer approach to setting up jokes and conflicts rather than the slam-bang technique favored by larger studio films."
• "The movie settles into a series of ho-hum conflicts and complications, and the requisite slam-bang ending is perfunctory at best."