A piece of shit that gets flattened in between the cheeks of your ass (after an early morning dump), and throughout the course of a day, it dries and becomes brittle, just like a cracker
Man I need to go home and get rid of this huge butt cracker, it's starting to itch.
by MightyT June 17, 2010
A person who is very proficient in the art of the deadly fart, it may be silent, it may be noisy, but one always knows for a fact that it will be stinky, it will clear the room, and sicken the occupants with it's ghastly odor, this term was coined by the fact that some of these odoious folk have actually cracked the skin around the butthole by releasing their poisonous gas.
OMG!That Buttcracker left an odor so bad we had to air out the place for three days!!!!!
by wickedhurricane March 03, 2008