“Filibluster” (filibuster + bluster) is a term that describes a filibuster speech as mostly bluster. “Filibluster” has been cited in print since at least March 1941. The term has seen increasing use in the 2000s and Kentucky Senator Rand Paul’s March 6–7, 2013 filibuster was called a “filibluster” by some.
 
 
4 March 1941, Boston (MA) Herald, “Top o’ the Morning” by George Ryan, pg. 12, col. 6:
Somehow what has been going on of late in Washington sounds to a good many folks a good deal more like a filibluster.
 
20 May 1963, Tyrone (PA) Daily Herald, “Inside Washington” by Henry Cathcart, pg. 4, col. 1:
FILI-BLUSTER?—Did you ever wonder what use is made of the official public record of those long, long filibusters that break out in the Senate sporadically? They’re read, that’s what, and even by some senators.
 
12 November 1993, St. Paul (MN) Pioneer Press, “Will Senate stick to its guns next week when it returns to crime-fighting bill?”, pg. 16A:
The filibluster gang decided not to try to take hostages at gunpoint this time.
 
The New Yorker
FILIBLUSTER
BY HENDRIK HERTZBERG
JUNE 13, 2005
The battle in the United States Senate over judicial filibusters has been a field day for martial metaphors (such as “field day,” an eighteenth-century term for a day of military exercises).
 
Google Books
Suitcase Words
By Lon Gibson
Xlibris Corporation (Xlibris.com)
2010
Pg. 58:
filibluster fil•uh•bluhs•ter (verb) To make an emotional and clumsy case against a bill before congress.
 
National Review Online
DECEMBER 4, 2012 4:00 A.M.
Filibluster
By The Editors
Filibuster “reform” — intermittently called, over the last decade or so, the “nuclear option” — is something of a moving target.
 
USA Today
Hagel delay dark comedy of ‘filibluster’: Opinionline
4:43p.m. EST February 17, 2013
 
Burford Patch
FROM WHERE I STAND
By Ray Newman
March 12, 2013
Filibuster or Filibluster?
With all that needs to be done to give leadership, it seems we could, for such a time as this, seek to find solutions rather than fighting for headlines.