we used to call them cannonballs,they fuck you up.
we also used to do powerballs,which included takin a bong rip,shotgunnin a beer,blowin the smoke out through the beer can so it looks like a smoke commin out of a chimeny,and then finishin it off with a line of some fine flake.not recomended if your planin on goin out,your straight twaked out for an hour