on fleek extremely good, attractive or stylish (I am far too old to use this, or even understand what it means. For more information, read this.)
Brexit the UK leaving the EU
Dark Web part of the web only accessible with special software, allowing users to remain anonymous
ad blocker software designed to prevent advertisements from appearing on a web page
they used to refer to someone of unspecified sex
refugee a person forced to leave their country to escape war, persecution or disaster
sharing economy a system where assets are shared between individuals for free or for a fee, usually through the internet.
lumbersexual a young urban man with a particular way of dressing (usually with a beard and a checked shirt) that makes him look like he has a rugged outdoor lifestyle.