gandalf 

santa on crack

you shall not pass!

gandalf by lewis June 14, 2004

Gandalf 

To come back from the dead in a spectacular fashion, normally just in time to save someone's ass from getting kicked. Just like Gandalf in LOTR.

I was sure he was dead after the nuke went off, but he did a Gandalf and saved Bauer's ass.

Gandalf by pasdaddy May 7, 2009

so not Gandalf 

with the high appreciation for something being described as "pretty wizard" an apparent lack of negative expression for it is taken to a large extent

with Gandalf being "pretty wizard" if something happens that is so terrible, it can be seen as something Gandalf would never do or approve of

"she left him at the alter for the best man who was his brother" "Dude, that is so not Gandalf.."

so not Gandalf by Sidl3y August 20, 2011

Gandalf Grey Balls 

An extremely old, grey haired cop that is ready for retirement but still packs a punch and likes to kick ass

Suspect: Yo Gandalf Grey Balls over there kicked my ass.
Junior cop: You should have shut the fuck up and did what he said.

Gandalf Grey Balls by Chicoguy December 5, 2012

Gandalfgasm

The end result of blissful LOTR overload.

I had a gandalfgasm after watching all 3 extended LOTR movies. You know - at the point where he sails off in those boats...

Gandalfgasm by square wheel June 28, 2007

Gandalfing

Sitting and staring while smoking weed, in order to solve a problem or remember something.

When I cant figure out how to fix something, Im know for Gandalfing out on the problem.

Gandalfing by Prince Randorson January 4, 2016

Gandalf's Cave 

Spot just outside the Watertower in Arlington, MA. Gandalf's Cave is marked by bio-hazard graffiti and the name GANDALF"S CAVE spray painted on the large rock. The spot is commonly used by thrill seekers looking get "sauced". If you are looking for Gandalf's Cave, you can look for the burned area and the trees that have been literally kicked down. They say if you get drunk enough you can see Gandalf himself wandering the area.

Dave: "Joe is absolutely hammered"

Paul: "I know, Gandalf's Cave is the best "

Joe: " YOU SHALL NOT PASS"

Gandalf's Cave by mattcrowley1234 July 30, 2010