Blackstock
Blackstock is an alternative word for anal-sex
eg, did you shag her? yeah, i did her up the blackstock
Blackstock Bounty Hole
A hole so deep where no light is present and appears black but you gain great satisfaction.
Hey Zack do you want to go to town and drop off in that street meats blackstock bounty hole?
Blackstocked
When someone copies you out loud and thinks it is actually there idea
He just blackstocked my idea