spang definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Informal abruptly, directly, or exactly
Origin: ; from dialect, dialectal spang, with a leap
spang definition by American Heritage Dictionary
Precisely; squarely: fell spang into the middle of the puddle.
Origin: Probably from dialectal spang, to leap, jerk, bang, probably of imitative origin.