What is Granting?
1.
When one excessively complains about simple and minor things, such as videogames, sports, or any form of minor imperfection, such as a fuzzy television screen or perhaps an out of place pixel.
He claimed the baseball game was set up, and I had to listen to him granting about it all night.
See
2.
When a group of friends is enjoying smoking pot and one person decides to hold the joint/bowl while talking your ear off about a random story that nobody gives a shit about.
Jimmy and Steve were smoking a joint steve kept holding the joint and letting it burn out, "Steve, quit Granting the joint and pass that shit."
See