blunderbuss

big old medieval ancestor of the shotgun used by the original colonial gangstas.
Looks like a trumpet that you stuff with gunpowder.

a person regarded as clumsy and stupid; an insensitive, blundering person

An uncharacteristic error, usually made by the goalkeeper or defensive line whilst playing FIFA that generally leads to conceding a goal.

a gargantuan obese slab of fat/lard, located specifically on a girl, sometimes boy. often described as a paunchy whale. a blunderbuss is often found drunk in the hottub, at the mall trying to pick up boys, at the back of shows trying to be "scene", (you can always find it eating in any situation including these i have described), a blunderbuss will also buy shit from bands it has never heard of and then later say they hate the band. a blunderbuss is very very very very ugly/fat/fake/emo. he/she will cut themselves and take pix of it and put it on myspace to look "cool". she, i mean it, will take any guy or girl he/she can get. EVEN IF THE GUY IS FROM GEORGIA AND THE BLUNDERBUSS LIVES IN MICHIGAN!!! usually a blunderbuss will think its the shit and think everyone else is below them.
so pretty much to sum it all up, a blunderbuss is a fat fake emo stalker =D...feel free to add if you feel the need to =

When you shit so violently that you scatter fecal matter over the back of the toilet bowl

while having sex and without warning, one person stands up, shits in their own hand, and throws it at the other.

A pair of extremely large breasts, particularly ones that are disproportionate to the rest of the woman's body.