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adj.

A greatly random act or action that is sudden and perplexes those who encountered it leaving them dumbfound. A step above random, thus the g for greatly random shortened to grandom.
John: Did you see the guy at the reception with a top hat?
Mark: No why?
John: He was so grandom, he started speaking German and throwing rubber ducks out of his suit case while playing the Macarena on a boombox all while he Capoeira.
Mark: ...damn, what hell was that?
grandom by Jphn KL. March 8, 2018
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Dude A: What u up to tonight?

Dude B: Gonna get drunk and grandom!
Grandom by Mr Grandom August 3, 2009

classy grandma 

Used to keep conversation and comments appropriate. If you wouldn't say it in front of my classy grandma, you shouldn't say it at all.
STUDENT: "This assignment is bullshit."
TEACHER: "Let's keep it classy grandma, kids."

Grandmafication

To produce a 99% percent bowl movement and try to pass it off like its just urine.
Wow, it looks like this bitch right here has herself a little grandmafication problem, let's help the bitch out with cleaning up guys.
Grandmafication by Ranchgirls December 6, 2020

Grandma Caprio 

Artie Lang's now deceased grandmother. Often imitated by Howard Stern on his show.
Howard Stern: Oh, look Artie, we have Grandma Caprio on the phone...
(Howard doing Grandma Caprio in deep Italian accent): Oh, my-a Artie... You must-a get back-a with-a the Daner. She was-a the best-a thing-a that-a ever happened-a to you-a...

grandma car 

A grandma car is basically your run of the mill 1990's sedan with low kilometers. Typical Grandma cars are the Chevrolet Caprice, Ford Taurus, Toyota Camry, Chrysler Intrepid, Honda Accord, Nissan Altima, Pontiac G6 and Any and/or all Buick or Mercury cars. These cars also must have Unpaid Parking tickets on the dashboard along with hard candy and Efferdent Denture Cleaning Crystals to be considered a True "Grandma Car." A grandma car must also be slow as molasses in a Canadian Winter and in dire need of an oil change.
"Dude, Why did you buy such a grandma car?"
grandma car by WastedCactus July 3, 2014

grandma mills 

The coolest grandma out there, aka Millie Bobby Brown.

(Watch Millie Bobby Brown’s instagram live stream on youtube 2/19/18 for more information)
“Hey grandma mills”
“Heyoo what up

“Yo grandma mills i’m hungry”
“Well what do you want Chick Fil A or Mcdonald’s?”
grandma mills by alrightymills February 21, 2018