Lacuna - a gap or a cavity.
Life hack - trick that makes life easier, say how to pack a bag cleverly or how to become more effective in the mornings.
Bestickning (swe) - bribe.
Welschmertz - the feeling you have when the world is not the happy place you imagined it to be
Eve teasing - public sexual harassment.
Gäris (swe) - a woman who does not identify herself as heterosexual.
Whitewashing - censorship, often to cover up mistakes or glorify results. Applied by some governments, for example.
Mukbang - eating in front of a camera (live, but not necessarily) so that lonely people around the world have you as dinner companion. There are some Korean eating superstars that do this for a living.
Mulesing - cutting the tail off lambs (done for instance in Australia) to avoid invasion of larvae in its wool. Done without anaesthesia.
Tether - sharing the phone's mobile data with another device.
Desinformation - a fact that is a lie.
Social housing - houses reserved for people with a particularly low income.