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8.
short for grommy, a combination of grandma and mommy coined by my 3 year old grandaughter, then shortened finally into "Groms."
Groms, what's you doing?
door pheeoz08 9 augustus 2010
 
9.
An annoying young kid. Usually refers to the age range of 8-14.
Hey dude, watch me kick this grom in the throat.
door clamum 3 juni 2007
 
10.
a wanna be scene kid according to the chavs and sluts but to the 'groms' a new generation below scene kids
'omg your so grommy'

'lolz k behbz'
door perksyy 18 augustus 2011
 
11.
Hilariously mangled spelling of "Gorn", the large reptilian alien from the Star Trek television series.

Gorn was first misspelled as "Gorm" in various forum and email messages, which was later further mangled into "Grom".

Fun Fact: Groms is generally considered to be the singular of Groms.
Why'd you choose the Groms?" "Oh, you know, beacuase I like scaley lizards
door GromGromGrom 26 mei 2011
 
12.
1: A Marine who was hit in the leg with shrapnel during the Bosnian conflict.

2: The person you should give Sunkist at anytime He/She ever shows up.

3: The person who sniffs your foot to make sure you don't have trench foot, then forces you to drink from his/her pimp chalice.

4: Don Hernando De La Tooth

5: Means Thunder in Polish

6: The hilarious banter that causes you to not pay attention to the proceedings. (see also Grommentary)
"That's a giant ass beetle!"

Grommentary: "somebody knight that thing!"
door SlothyWASMachete 28 juni 2010
 
13.
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.
door Dr. Gromster, M.D. 11 november 2009
 
14.
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
door Macej 8 januari 2006