"Fire in the hole" is a warning that an explosive detonation in a confined space is imminent. It originated with miners, who needed to warn their fellows that a charge had been set.
It's a joke I found some time back. I like it, and it makes must of us smile...
A man was driving up a steep and narrow mountain road. A woman was driving down the same road. As they passed each other, the woman leaned out the window and yelled, "Pig!"
The man immediately leaned out his window and replied, "Bitch!"
They continue on their way, and as the man rounded the next corner, he crashes into a pig in the middle of the road.
A lizard is walking through the bush and he looks up and sees a koala sitting on a branch and he yells out whatcha doing. And the koala yells down just having a smoke, why don't you join me. So the lizard climbs up the tree and out on to the branch and him and the koala are just sitting there sharing this joint and looking out over the bush. After a while the koala rolls another smoke and they share that and the lizard says I'm thirsty .. I'm going down to the creek for a drink. So he climbs down and staggers off and when he gets to the creek he leans over and falls in and he's thrashing around making all sorts of noise. There's an old croc watching this and he swims over, grabs the lizard and puts him on the bank and says you OK little buddy ? The lizard tells him how wacked he is and tells him about the koala.
The croc says hmmm. I better check this out!
The croc goes walking through the bush looking up and finally sees the koala ... He looks up and yells out hey! The koala looks down and goes Farrrk dude ... How much did you drink
A guy goes into a bar and orders a drink then has a need to use a bathroom. Can't find bathroom, sees a stairway and goes up to second floor but no bathroom. Spots hole in the floor so does his business there then goes back downstairs. The barroom is empty except for the bartender. "Where did everyone go"? Bartender says "where were you when the shit hit the fan "?