Top 15 Words Added To Merriam-Webster Dictionary

Auto Tune or Auto-Tune
vt (verb transitive) (2003):

A proprietary signal processor, to adjust or alter (a recording of a voice) with Auto-Tune software or other audio-editing software, especially to correct sung notes that are out of tune.

Cap-and-Trade
adj (1995):

Relating to or being a system that caps the amount of carbon emissions a given company may produce but allows it to buy rights to produce additional emissions from a company that does not use the equivalent amount of its own allowance.

Catfish
n (1612): (second definition)

A person who sets up a false personal profile on a social networking site for fraudulent or deceptive purposes.

Crowdfunding
n (2006):

The practice of soliciting financial contributions from a large number of people, especially from the online community

Dubstep
n (2002):

A type of electronic dance music having prominent bass lines and syncopated drum patterns.

Fangirl
n (1934):
A girl or woman who is an extremely or overly enthusiastic fan of someone or something.

Freegan
n (2006):

An activist who scavenges for free food (as in waste receptacles at stores and restaurants) as a means of reducing consumption of resources.

Gamification
n (2010):

The process of adding games or gameline elements to something (as a task) so as to encourage participation.

Hashtag
n (2008):

A word or phrase preceded by the symbol (hash) that classifies or categorizes the accompanying text, such as a tweet.

Selfie
n (2002):

An image of oneself taken by oneself using a digital camera, especially for posting on social networks.

Social Networking
n (1998):

The creation and maintenance of personal and business relationships, especially online.

Steampunk
n (1987):

Science fiction dealing with 19th-century societies dominated by historical or imagined steam-powered technology.

Turducken
n (1982):

A boneless chicken stuffed into a boneless duck stuffed into a boneless turkey.

Tweep
n (2008):

A person who uses the Twitter online message service to send and receive tweets.

Yooper
n (1977):

A native or resident of the Upper Peninsula of Michigan - used as a nickname.