Definitions by heapster
g-lash
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