Hangry, manspreading, and Grexit are among 1,000 new words that have been added to the online Oxford dictionary.
The new additions were part of a quarterly update announced in a blog post by OxfordDictionaries.com on Thursday.
Hangry is described as "bad-tempered or irritable as a result of hunger".
Manspreading is described as "the practice whereby a man, especially one travelling on public transport, adopts a sitting position with his legs wide apart, in such a way as to encroach on an adjacent seat or seats".
Other words include mic drop – "instance of deliberately dropping or tossing aside one's microphone at the end of a performance or speech one considers to have been particularly impressive" – and awesomesauce, which means extremely good; excellent.
Words associated with news events have also been added, including Brexit (Britain's potential exit from the European Union) and Grexit (Greece's potential exit).
Fiona McPherson, senior editor of Oxford Dictionaries, said.
There's always been new slang words. I just think we are more aware of them because of the ways in which we consume and live our lives now.
We are bombarded with more and more avenues where those sort of words are used and we just think that there are more of them. I don't necessarily think that's the case.
A number of online and gaming terms have also been added to the online dictionary.
Rage-quit is a verb meaning to "angrily abandon an activity or pursuit that has become frustrating".
Other new additions include:
Brain fart – a temporary mental lapse or failure to reason correctly.
Beer o'clock – an appropriate time of day for starting to drink beer.
Wine o'clock – an appropriate time of day for starting to drink wine.
NBD – an abbreviation of no big deal.