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4.
This means that an obvious punchline has been left tacit
An example, in this case, would be frivolous. You either understand it, or you don't.
by TV Spunk January 30, 2003
 
1.

Adjective;

Something implied but not expressed: understood or implied without being stated openly.

A tacit agreement.
by Jafje September 11, 2007
 
2.
Means silently understood, often comes up in the American standardized test, the SAT (Scholastic Aptitude Test)
Tacit - SAT vocab!!
by Whale Watcher April 23, 2003
 
3.
adj:slang (limit reached)
Tacit, I had enough pumpkin pie for tonight
by lastofthebohemians October 28, 2012