definition - verb, to sue your former bandmate (especially appropriate if you wait til several years after you quit the band)
background - Slash (formerly of Guns N' Roses) has brought a suit against former bandmate and still current member of Guns N' Roses, claiming that Axl has been "cock blocking" songs from their catalogue for being licensed. Slash and the former bass player are suing for sole rights to the GN'R catalog as well as shitloads of money charging intent to defraud with malice.
Yo, you gots all dis money and shit and you be cock blocking me from getting paid yo, so dats why I gotta slash yo ass.
If you didn't blow all your money on drugs and women and parying your are bound to be slashed by former bandmates.