work friend
Someone you connect with at work (ie send same-time messages all day, take bathroom breaks together and share your lunch). The way in which you interact at work leads people to believe you are best friends when in reality you would never been seen outside work with them.
Steve: So are you inviting Tonya to the Pub Crawl?
Jessica: No bro, she's a total work friend.
Jessica: No bro, she's a total work friend.
Fake Work Friend
Someone who talks to you and acts like they're your good friend in the workplace but has nothing to do with you after hours...
Jairus never invites me to the movies because I'm his fake work friend (fwf).