Merriam-Webster has released its list of new words being added to the 2012 update of Merriam Webster’s Collegiate® Dictionary. This years list includes 25 new words and their exact definition as defined by Webster. From “brain cramp,” “e-reader,” and “underwater” to “f-bomb” and “sexting,” the list provides a revealing look at American culture.

Who determines which words make the cut? says their editors monitor the changing language and add new terms to the dictionary once those words come into widespread use across a variety of publications. Influences range from the global financial crisis to technologies to Oprah Winfrey and her signature phrase “aha moment” (a moment of sudden realization, inspiration, insight, recognition, or comprehension).

Curious as to what made the list in 2011? Here’s a nice recap: