out of the loop 

Uninformed. Ignorant of the situation. Not receiving appropriate information. Think of "the loop" as being a communications channel, and therefore being out of the loop means no one is communicating with you to get you the information you need.

Manager: Why did you miss today's staff meeting?

Employee: I didn't know there was one scheduled. I was completely out of the loop.

out of the loop by Evac156 February 24, 2005

on the loop 

to keep something on repeat

Hey man keep this song on the loop.

on the loop by arenae08 March 25, 2016

in the loop 

in select company, especially in the circle of the influential and powerful

He was not able to get critical information regarding corporate decisions because he was not in the loop.

in the loop by Paul Kusinitz January 23, 2003

Loop the Loop 

Either a dance or sexual intercourse. Referenced a lot in the musical entitled "Bye Bye Birdie".

Mr. Macfee: Don't just stand there, my daughter is about to loop the loop with a fiend!"

Eursula:"You said it yourself we've got a lot of living to do Motorboat races, midnight swims and loop the loop!"

Loop the Loop by BMPowell19 February 9, 2010

In the loop 

When you know all of the latest news about something

Krystal and Christen keep each other in the loop about their crushes.

In the loop by LoopDeLoop23 January 18, 2017

closing the loop

When you sleep with the original person that you lost your virginity to many years after having several other partners. This is in reference to the movie Looper.

Looper: Dude I had sex with my high school sweetheart the other day. I haven't hooked up with her in 6 years!!!

Friend: Wow man! don't you think you're a little young to be closing the loop?

closing the loop by Slimjimrules2 March 11, 2013

in the loop 

In select company, especially in association with a circle of powerful people

If this man is in the loop, than he is probably not going to help us.

in the loop by The Return of Light Joker August 4, 2009