I suppose this is where Just hink (space added to improve readability) got the idea for his user name. This explains alot. 
That makes you one of the cool kids. Just so’s you know.
Jiggery-pokery, for any underhanded or dishonest covert actions.
Umm…Antares…is there some technique you can teach me on how to bring one of these about? Seems like it’d be a great thing to have happen while Christmas shopping or something. Of course being a guy, I’ve got a couple of concerns but the trade off would be worth it 
Back to the matter at hand, my friend and I have a tendency to also add -tastic or -rific or -tacular to words in order to describe things that otherwise could not be described. For instance, that cut of beef was steaktacular, or the trip to the library was booktastic.
Why, thanks Rue! I’m kinda sweet on it myself!
Cluster-fuck. When everything is all jammed up and cluttered. “Boy, traffic at the intersection of 72 and 59 was really a cluster-fuck tonight.” This can also be used at work when a project goes bad. “Who’s in charge of this cluster-fuck? Send him into my office!”
I also use “stinks” when I suspect someone is doing wrong. “I saw Joe’s girlfriend up at the bar with Bill. I think she stinks. Do you?”
That’s interesting - I use kyfe to mean “steal”, in that good natured friend sort of way. For example: I kyfed this from my roommate’s closet.
I also call rubber bands “gum bands”, accuse people of having “hissy fits” and on occasion get somewhat “discombooberated” instead of “disconbobulated”. Sheesh.
I have been known to use “nocuous”. It’s the opposite of “innocuouc”, and means harmful. You can do the same thing with innocent/nocent.
“Theological”, “deism”, “tacit”, “emotive”, “gnosis”, “quiddity”.
Does anyone correct quotations in their heads? For instance, when someone exclaims, “I’m happy as a clam!”, I always mentally add, "at high tide. That’s the reason the clam is happy- no one can dig it up, because the water’s… oh, forget it.
Oh yes, a “hissy fit” to me is “throwing a wobbly.”
while ranting:
mediocrity
cretineity
Oh yes, and in Manchester getting in a mood is sometimes seeing your arse, as in “He really saw his arse when I said that” - figure that one out.
I’ve never been able to work “glom” into a conversation. But I’ve really wanted to! It was used in a detective novel I was reading years ago. In context:
“check out the vic’s car and see what you can glom”,
or something like that.
Moke is my newest favorite word (meaning dull or boring person). I just makes me laugh when it comes out of my mouth.
“You moke!” snort!
I’ve been known to refer to someone disparagingly as a cheese log - as in:[ul]“Did you see that cheese log? He pulled out in front of me then hit the brakes!”[/ul]Feel free to use it - it works on so many levels.
I forgot the one that drives my wife crazy:
“Asshat”
Pronounced “ass hat.” Used as a nonspecific disparaging term. As in, “George Lucas made some good movies way back when, but now he’s just an asshat.” Roughly equivalent to “dipshit.”
I picked that up on notmydesk.com because it made me laugh and laugh. My wife periodically decides it’s annoying.
“Dingus” gets some airplay with about the same meaning.
Tahgweeoat: Mutation of the phrase “to go out.”
Example: I say to my short ‘n’ furry dog, “Crease, want tahgweeoat?”
I also like adding -umuh- in the middle of words and/or changing their suffixes.
i.e. disgustumuhfied, complumuhcated, exhaustumuhfied, grossumuhcated
Goob, short for goober.
“Oh man, did you hear what he said? What a goob.”
I’m so pleased to know from whence this came…I caught it one of the first days I lurked on this board and proceeded to snarf* my coffee all over my desk.
I brought the phrase home to my roomate, and there are now 3 distinct usages in our household.
- Asshat- may be used to replace “Bullshit” in every usage
- Noun, as in “You Asshat!”
- “There was a sale at the Asshat store today” (said, verbatim, at least once a day in my house.)
*Note: When one snarfs it is customary to pay $1 to the individual responsible for your action. Don’t ask, you just do.
I’ve been using snark a lot lately. Picked that one up from Television without Pity. Shout-out, meaning something with a particular meaning for you (like if someone went to your school, etc.), also comes from there.
I’ve been playing around a lot with the word crap, too. Craptastic; craptacular; crappylicious; crapdoodle. Also suck, as in suckitude or suckitudinousness.
I loved Duck Duck Goose’s use of the word fucktard in the title of her Michael Jackson Pit thread. I’ve been rolling it around in my head a lot, I’m just not sure I’d feel comfortable using it.
And then there’s the classic from childhood, psghetti, which is still one of my favorites.
Me? I just like changing around suffixes and letters.
“Butterfly” becomes “Flutterby.” (Kind of fits, too!)
“Animosity” becomes “Anomociousness.” And so on.
“Blasted” is my all-purpose adjective to describe stuff I don’t like. (e.g. That blasted dog got in my socks again!) “Bloomin’” is good too. I picked it up from “My Fair Lady.” 
Also, “obnoxious” is a good word to describe the superlative degree. “I have an obnoxious abount of work to do.” “That guy has an obnoxiously large ego.” It can also be used without the disdain! “I like that obnoxiously wicked cool hat you’re wearing!” It’s all-purpose!
I also like “Weltanschauung.” Calvin and Hobbes strike again!
“Cluster fuck” is one I need to be careful with. Along with “Jesus fuck” - one of my favorite expressions of exasperation. Folks seem to get upset. Not sure why!
When folks ask how things are going, I say, “swimmingly.”
Also, when folk as how I am, I generally respond, “fantastic, splendiferous, tremendous, resplendent” or some such superlative. Funny how that can get the attention of the most jaded check out clerk. And I try to fool myself into thinking that if I say it enough, I’ll believe it.
I am surprised at how often people look querrolous in response to the word “soporific.” Very useful in any number of situations, and I know no better term for sleep-inducing.
It’s always weird when you use a word correctly, and someone asks in a challenging way, “What does that mean.” It is frustrating when you fail to immediately come up with an adequate synonym, because you already used the word you thought most apt.
My fave experience with this was in college, when I referred to something as a faux pas. My buddy said, “what does that mean? That’s not a word.” I said it means “a social blunder.” The guy goes off in search of a dictionary, and comes back saying he’ll never question me again. The dictionary said simply “faux pas; a social blunder.” One of the highlights of my 4 decades plus!
Crepuscular - pertaining to dusk, is a nice one. Bats, night swallows, and the new moon are crepuscular, as well as rays from an already set sun.
I’ve coined a word - roughly pronounced “ke-muh” - to mean “say again?” The intonation is raised on the last syllable so that it sounds like a question.
I love the word “anathema”, and I sprinkle it into conversation whenever I get the chance.
I used the word “surreptitiously” three times, in the span of two hours, the first night I spent with an ex of mine. After the third occasion, she said, “You keep using that word. I like it.”