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1.
The verbal Award for nailing someone who has grandchildren.
Ever since my buddy got that kitchen job at the old folks home, he has earned his Grey wings many times.
by Ryo_slide December 02, 2008
 
2.
Giving oral sex to a corpse. Some biker gangs have used this as part of their hazing process and if you complete it successfully you will receive a patch with "Grey Wings" on it you can sew to your leather jacket.
Go to the morgue, sneak in, find a fresh corpse and get your Grey Wings, make sure to get photos as proof.
by xdementia August 15, 2007
 
3.
To skull fuck someone (of coarse when you have finished they are dead)
Last night i got my grey wings with sarah louise
by Maximus May 02, 2003