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1.to steal or hook up with your good friends girl 2. the act of going after a friends girlfriend or girl 3. hooking up with your 'homies' girl within a month or less after a break up 4.going behind your best friends back and stealing or hooking up their girl 5. the g-lash move is pretty much betraying all trust and using your position as best friend to steal away ones girlfriend
1. My bestfriend Bob g-lashed me the other night! He totally hooked up with this girl i was dating! 2. Garrett totally g-lashed stef, natalee, and emily 3. Oh God, I hope i dont get g-lashed this weekend!
g-lash by heapster January 11, 2009
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the act of stealing something or someone. most commonly used to describe stealing someone (usually a close friend's) girlfriend or girl of interest, but it has been expanded to mean stealing anything in general
Dude im so sorry, i totally g-lashed your girl...but we're cool now right?

Ah fuck, you totally g-lashed my seat

He g-lashed stef, emily, and natalee in one epic summer
g-lash by a guy whos been there August 24, 2008
Related Words
The word " Glash " is the act of a Prelash, however only involving the female sex thus "G-lash" stands for Girl lash. Glash is a play on the words in order to make the male sex know where there not wanted. It involves shots, cocktails, crazy reggaeton music, a camera(preferably one with good focuss) and the occasional strongbow black. Glash's arent the most memorable nights so the pictures that come from it jog the memory. Glash's are joyous,drunken occasions where the males have no say.
-"Glash at yours?"
-" Before the party lets have a Masssive Glash?"
- "Glash it up girls"
Boy- can i come ?
Girl - No its a glash. Scrape out and pipe down.
Glash by Ballefezghis2010 June 22, 2010
Glash is the act of stealing your girlfriend, constant hook up, or close girl that happens to be your friend. Glash or lashers are only interested in the female pray if and only if she is taken. Glash will swoop as soon as you show slight interest in the same female.

Be aware of the Glash he is always on the prowl.

NO ONE, I MEAN NO ONE IS SAFE.
Glash lashed natalee, steff, and emily in one quick manure.
glash by McSwoops January 27, 2008

glashten 

a multicolored dildo
huffs seimen
lives in never never land
looks up too mccauley kulkin
eats pebbles for breakfast
loves too choke the chicken
petifile
dont be a dirty glashten
dont be a dirty multicolored dildo
glashten by dereks69 June 5, 2009
The optical illusion of light when squinted at or viewed with astigmatism.
This rain is making the traffic lights all glashy.
Glashy by Gregg Nogg March 21, 2011
Totally cool; awesome; one of the best.
(May also be refered to as glashy, glashous, etc.)
You got the glashy style...
glash by Chant'L April 1, 2005