Guest-Friend 

Someone who you dont want to show up but they do anyway. You probably dont like him/her because they are annoying, though you always see them. Otherwise known as the buzzkill of the party.

1: Who all showed up at the party?
2: Just some of the guys...oh and my guest-friend, Terry

Guest-Friend by RazzTheDayWalker June 1, 2009

guest friendly 

A "guest friendly" hotel is a hotel which allows unregistered guests (commonly prostitutes) back to the room. This is a popular "feature" in party towns or in towns where foreigners come to "meet" locals.

Many hotels do not allow unregistered guests to spend the night -- even when accompanied by a registered guest. In some countries, hotels will charge a "joiner fee" for any unregistered guests.

"Guest friendly" hotels are also sometimes called "no joiner hotels".

Russian girls are awesome. Make sure you stay in a guest friendly hotel.

guest friendly by BANGKOK1AN June 5, 2017

GestFriend 

A GestFriend is your girlfriend and best friend like you have a best friend bond but have loving and melty gooey feelings for each other

Hey she’s my GestFriend and always will be sorry buddy

GestFriend by 740.luke October 21, 2019

Gestfriend 

A goon and a bestfriend all in one; someone who is always going to be there for you no matter what, but at the same time is going to set you straight if they see you need it.

"I need a gestfriend in my life."
"I can't live without my gestfriend."

Gestfriend by Cheki February 12, 2017