8
An annoying young kid. Usually refers to the age range of 8-14.
Hey dude, watch me kick this grom in the throat.
by Filthy Sally June 03, 2007
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9
Someone that tries super hard to be cool but really is just a fake wanna-be that totally annoys you.
Man that Whitney dude is such a grom, he pissed all over himself after drinking a few Twisted Tea's. I bet he drops grommer's all the time in bars.
by Dr. Gromster, M.D. November 11, 2009
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10
The grimmest of the grim.
'Sweet jesus, did you just do a shit on my floor?! Dude, that is GROM!!!'
by Mr. Fisherman Beard April 14, 2013
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11
To forcefully grasp, seize or colonize a person, thing, or sexual object.
Here is how grom is commonly defined:

Guy 1: " hey watch should we grom for lunch"
Guy 2: " I dunno I'll grom ur ass"

Part 2:
Guy 1: " oh no I ehGROMulated everywhere"
Lady: "ah crap"
by Poopypoopoo696969 February 02, 2017
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12
Polish special forces which translates to lighting in polish candidates must know 2 different languages and the training of ONE soldier is about 1 Million dollars. The soldier will be also a master in karate and stealth killing.
Grom is a special forces unit
by Macej January 08, 2006
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13
the noise an oncoming giant's footsteps make.
GROM GROM GROM GROM
mom what’s that?”
“THE GIANTS HONEY! RUN!"

GROM GROM GROM GROM
GROM GROM GROM
IT WAS YOU WASN'T IT?

GROM GROM
“RUN JIMMY, RUN!”
YOU SHALL PAY WITH YOUR LIFE
“DONT STOP UNTIL YOU CAN’T HEAR THE GROM”
GROM GROM

ITS SNACK TIME
“JIMMY NOOOOO”

*crunching grom noises*
“JIMMYYYYYYYYY"
NOW I SHALL GO BACK TO MY SLUMBER AND IF ANYONE DISTURBS ME THEN THE SAME WILL HAPPEN TO THEM

*mother sobbing in empty field*
GROM GROM GROM GROM grom grom grom grom grom
by anipug May 31, 2014
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14
A person who surfs or even skates. They spend most of their time at the beach.
Lucy - That Josh is always at the beach.
George - Oh yeah well he's a grom aye?
by ledde July 13, 2015
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