The Oxford English Dictionary added over 900 new words, phrases and senses in its March 2014 update. Here are some of the more wackadoo entries.
Bestie (n.): a person's best friend; a very close friend.
Wackadoodle (adj.): crazy, mad; eccentric.
Beatboxer (n.): a performer who uses (amplified) vocal effects to imitate the sounds and rhythms of hip-hop music.
Bookaholic (n.): a habitual and prolific reader; a compulsive book buyer.
Scissor-kick (v): to perform a kick which involve a scissor-like motion of the legs, as in swimming or soccer.
DIYer (n.): a person who engages in do-it-yourself activities; an amateur (in construction, repair, etc.).
Crap shoot (n.): a situation or undertaking regarded as uncertain, risky, or unpredictable.
Explaining the origin of the phrase crap shoot, Martin said:
"The phrase crap shoot arose in American English in the late 19th century to refer to a game of dice (or 'craps'). Nowadays, that original use is relatively rare, but the term has become very common in a figurative use, denoting a situation or undertaking regarded as uncertain, risky, or unpredictable."
Honky-tonker (n.): a person who owns, works in, or frequents a cheap, sleazy bar or nightclub, typically one where country music is played.
Do-over (n.): an instance or chance of doing something for a second or further time, after an unsuccessful or unsatisfactory first attempt.
Herogram (n): a congratulatory message from an editor praising a journalist's work. In later use also more generally: a message expressing praise, encouragement, or congratulations.
According to Martin:
"The word herogram is recorded from at least 1972, referring to a message expressing praise, encouragement, or congratulations—especially one from an editor to a journalist. The -gram ending comes from the word telegram, and herogram may have been influenced by the earlier nastygram which was originally used (as the name suggests) to denote a message of the opposite type—a reprimand."
Bathroom break (n.): a short period of time within the duration of an activity (often of a prescribed or limited duration) taken to use the toilet.
Cuntish (adj., coarse slang): nasty, highly unpleasant; extremely annoying.
TIME explained the origins of the word cunt in this article:
The word cunt, which more literally refers to female genitals, dates back to the 1200s. In the Middle Ages, English speakers were less squeamish about obscene language because they had much less privacy and therefore less shame about things like sex and body parts. So the c-word probably wouldn't have raised too many Black Death-plagued eyebrows. It was even used in surnames at the time, like Clawecuncte.