The Oxford English Dictionary adds new words on a regular basis to reflect new cultural phenomena.
Some of these words may have seemed silly at first but slowly worked their way into everyday conversation. Some of them are just silly, period.
Here are 20 surprising words that somehow made it into the dictionary.
Definition: a friendly embrace between two men.
Definition: "You only live once;" used to express the view that one should make the most of the present moment without worrying about the future (often as a rationale for impulsive or reckless behaviour).
Definition: arousing great delight; cute or adorable.
Definition: a photograph that one has taken of oneself, typically one taken with a smartphone or webcam and shared via social media.
Definition: forget about it (used to indicate that a scenario is unlikely or undesirable).
Definition: expressing great pleasure or excitement.
Definition: the supposed ability of homosexuals to recognise one another by means of very slight indications.
Definition: a smartphone having a screen which is intermediate in size between that of a typical smartphone and a tablet computer.
Definition: a glamorous grandmother, especially one who is relatively young or fashion-conscious.
Definition: worst in emphatic use.
Definition: a competition, or a round in a competition, in which a number of dancers compete against each other until a winner is declared.
Definition: a small digital image or icon used to express an idea, emotion, etc.
Definition: a person's best friend.
Definition: a habitual and prolific reader; a compulsive book buyer.
Definition: dance to popular music in a sexually provocative manner involving thrusting hip movements and a low, squatting stance.
Definition: a personal website or social media account where a person regularly posts short videos.
Definition: a form of camping involving accommodation and facilities more luxurious than those associated with traditional camping.
Definition: bad-tempered or irritable as a result of hunger.
Definition: to watch multiple episodes of (a television program) in rapid succession, typically by means of DVDs or digital streaming.
Visit INSIDER's homepage for more.