Gandalf the cat 

Gandalf is a white calico cat who licks a graham cracker every Monday on TikTok

Today is Monday which means Gandalf gets to lick a graham cracker. It is her favorite activity

Gandalf the cat is an internet celebrity

Gandalf the cat by Memequeen21 September 4, 2023

Gandalf the Brown 

The first solid poo to make an appearance after a long hard fought with diarrhea, signalling that the tide has turned.

In 'The Lord of the Rings: The Two Towers', the Battle of Helms Deep is all but lost until Gandalf the White appears, handing victory to the men of Rohan against the Uruks of Isengard.

Similarly, the arrival of Gandalf the Brown reveals that the battle for control of your bowels has been concluded in your favour.

Guy 1: You coming swimming later?

Guy 2: I can't, I have a bad stomach, I need to rest.

*30 minutes later*

Guy 2: I'll be coming after all, Gandalf the Brown has arrived.

Gandalf the Brown by jackholdmebackwilshere June 4, 2016

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

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

Gandalf Problem

In an academic setting, a misunderstanding or mistake so critical that it will cause you to fail a test. Something so bad that if you told someone about it, they would say, "dude, you are so screwed for that final. YOU SHALL NOT PASS."

Actually no, our exam isn't next week, it starts in 15 minutes... you've got yourself a Gandalf Problem right there.

Gandalf Problem by betterbeAWESOME December 5, 2011

Gandalf the gay 

Slang for an older bearded homosexual.

Bro #1: Who did you take for Chemistry this semester?

Bro #2: That old gay bastard, Gandalf the gay.

Gandalf the gay by Bulldog December 29, 2011

gandalf grade 

A grade that wont allow you to pass a course.

person 1:Man I just got a gandalf grade
person 2: Can you get enough extra credit to pass?
person 1:No Its an F on a test that counts as 50% of my grade. It's definitely a gandalf grade.

gandalf grade by Truth Tree February 1, 2018