Internet slang spreads like wildfire and sometimes seems to come out of nowhere. Some are short-lived, some are used in niche communities, but some go so far as to be included in dictionaries.

Whether you spend time online as a casual user or a marketer enacting a social media strategy, you want to know what different slang and abbreviations mean.

In this post, we’ll discuss how internet slang originates and spreads, define 81 slang words you might come across, and outline what it takes for slang to be added to our dictionaries.