Hello New Words

It's getting harder and harder to keep up with new words that are being added to the dictionary.
Test yourself! Here are a few that have been added in recent years. Have you heard of these, and do you know what they mean? If you do, start using them in your writing!

Chillax
Frenemy
Steampunk
Defriend
Tweetup
Hashtag
Staycation
Webisode
Router
Stonewash
Autosave
Babykins
Cryogenicist
Recap
Cami
Bot
Reboot