Something or someone that is stretched further than they/it should be, maybe a little torn and bloody, coated in semen, excrement, and possibly a lube of some sort. A shitty, nasty, wrecked person or thing.
Jerret you are such a buttsexhole!
If we don't get federal spending under control our country is in trouble because our budget is a buttsexhole as it is.
Wow, the sandwiches in this place are some buttsexholes.