To greedily grasp for the joint when it is shown to the Bilbo, usually accompanied by a fierce look in the eyes and raging desire. Similar to the scene from LoTR: The Fellowship of the Ring when Frodo shows Bilbo The Ring and he freaks-a-leak and goes for it.
Frodo - *Takes hit, about to pass*
Bilbo - HOLY SHIT! MY PRECIOUS!
* Bilboes for the weed*
Frodo - Woah, don't Bilbo the joint, bro.