OxfordDictionaries.com has added some questionable words to their list of definitions including pop culture terms such as 'YOLO', 'humblebrag' and 'SMH'.

The latest additions came as part of the websites quarterly update. 

Terms like YOLO, which have become widely used on social media sites and in pop culture, have been given the stamp of approval among some 40 other new terms.

The popular abbreviation joins the likes of words such as 'SMH '(Shake my head), 'amazeballs', 'adorbs', 'douchebaggery', 'neckbeard' and 'catfish'.