Gorram -

The firefly equivalent of "God Damn", originally developed to get past the censors, allowing characters to curse without getting bleeped. Widely considered a great idea, as most of the characters on the show have history in the military, or are somewhat 'rough and tumble', and would seem silly if they had a blatant aversion to colorful language. 

Scud/Scuddly/Scuddish - Something that appears awesome from a distance, but upon closer examination, turns out to be terrible.

EOT / E.O.T. -

EOT, or End of Turn... is a phrase used to describe the pause during a priority change in a card game, during the last possible moment, before the change of turns from one player to another. Usually it is used to activate an ability, or play an instant speed spell (as in magic the gathering).

Tachyon-

A subatomic particle that exists naturally at faster than light velocities. They are normally associated with time travel or a remnant of a temporal distortion, but have found use in many devices such as cloaking devices, detection grids, and teleporters.

A friend of 1d4Rounds, The Venn Show is about graf, music, and talent.
I love this show... And wish them much success. Like/Subscribe and enjoy.

Barrens Chat-

Useless chatter, or goofy jibberish. Derived from an area in the MMO World of Warcraft, that was flooded with silly conversations. 

Use)
"I can't talk to that guy... He is straight up Barrens Chat."