Usually found in the phrase, "What's the big tadoo" or "It was a big tadoo." It means a big deal; making something seem very important. OR it can be a party or shindig.
by CrassPip December 4, 2013
Big Tadoo is actually Big To-Do.
He prefers a small party, nothing fancy, no big to-do. Don’t go crazy, don’t make a big to-do out of it.
He prefers a small party, nothing fancy, no big to-do. Don’t go crazy, don’t make a big to-do out of it.
by Wordsy April 25, 2022