Oxford American Dictionary's 2012 word of the year, and the key to this puzzle's theme

Question:

Answer:

GIF

Length:

Similar Crossword Questions:

Economic term named the 2011 Word of the Year by the Oxford English Dictionary...and a description of 6 squares in this puzzle
This puzzle's fairly obvious theme word
Glen Campbell hit, the last word of which is this puzzle's theme
Word hidden in this puzzle's theme entries
Like this answer, or a two-word description of this puzzle's theme
Word that has two diametrically opposed meanings (like this puzzle's eight theme entries)
This puzzle's obvious theme word
Theme word inside this puzzle's theme words
Word before the first word in this puzzle's theme answers
Oklahoma Indian (and a three-word description of this puzzle's theme)
Number of times this puzzle's theme word appears diagonally in the grid (to complete the puzzle, shade those words plus the Down answers that begin where they meet)
Pithy sayings (four well-known ones containing the circled word are the keys to unlocking this puzzle's theme)
This puzzle's key theme word
It can follow the last word of this puzzle's theme entries
Angle (and a three-word hint to this puzzle's theme)
American Dialect Society's word of the year, 2009
Just making things up, or a synonym for a three-word phrase describing this puzzle's theme entries
This puzzle's theme word
Compromised . . . or a hint to the puzzle theme
New Year's word
Publication that is the key to this puzzle's theme
Kind of joke (exemplified by the theme of this puzzle)
Disparaging name for someone who wears glasses (and a hint to this puzzle's theme)
1999 film whose title is a hint to this puzzle's theme
South American stamp word