'Manspreading' - sitting with legs wide apart on public transport and 'awesomesauce' that describes something as excellent are among 1,000 new words added to the online Oxford dictionary.
Other new entries include Grexit, Brexit, hangry, beer and wine o'clock and NBD - meaning "no big deal", according to OxfordDictionaries.com which issues quarterly updates on current definitions of English words.
The addition of multiple slang words showed "creative" use of language, Oxford Dictionaries said.
New words and phrases are added to the website once editors have enough independent evidence to be confident of their widespread currency in English, 'BBC News' reported.
They, however, do not gain an entry into the Oxford English Dictionary unless there is a demonstration of continued historical use.
Manspreading means the act in which a a man sits with his legs wide apart on public transport encroaching on other seats, while bants is short for banter and NBD is the abbreviation of no big deal.
Hangry - an adjective used to show feelings of anger or irritability as a result of hunger, Brexit and Grexit - the potential departure of the UK and Greece from the EU - also made it to the list.
Awesomesauce, used to describe something as excellent, weaksauce - anything of a poor or disappointing standard and bruh, describing a male friend, were also added to the online edition.
Other words included are: pocket dial - to accidentally call someone while your phone is in a pocket and mkay - the informal pronunciation of OK.
The addition of multiple slang words did not represent a dumbing down of English, Fiona McPherson, senior editor of Oxford Dictionaries, said.