A grumpy grandpa who always insists that the world was better when he was a kid, and that we're doomed now because (terroists/running out of coal and oil/people becoming stupid). However, the term is affectionate.
A term often used by mainers when describing a large bowel movement. The people who use this term usually have a cigarette hanging from their lip and are fisting a bud. Also often used by construction workers and people who exhibit bad etiquette.
If there are any sorority girls present when this expression is used they surely will not understand. If for some strange reason they do, they will be disgusted.