An indoor game played by two or more players with similiar rules to those of soccer. Some significant differences are that it is played indoors and has a cube-shaped poof/foot stool as the "ball", hence its title.
The encumbering nature of the poof/foot stool and surrounds adds a tremendous element of difficulty to an already skillful game. Although the poof/foot stool is often soft, injuries are still incurred.
Tiernan: Urgh! I'm bored. How about a game of Square Ball?
A spontaneous game of cat-and-mouse where the assailant(s) pursues the hunted with a various array of knives usually in a mock Steven Seagal style. The game proceeds until the injury or damage done is regarded by both sides to have "gone too far".
Such a party is usually initiated with a group of participants by shouting "Knife Party" at any seemingly innocuous period of time.
Usually occurs where knives are prevalent (esp. kitchens).
Brendan: "What time are you leaving for college at?"
James: "Knife Party!"
Brendan: "No seriously, stop!"
James: (BRANDISHES MEAT CLEAVER WITH A SKILLFUL FLOURISH) "Ready when you are Brendan. Ready when you are."
Imaginary calculator, the use of which, is sarcastically suggested by others to highlight a person's incapacity in completing a technical task. A secondary function of the term's use can be to convey the frustration experienced when working with such a person.
Brendan: How do you get the final answer in this problem?
Paul: Just use the Infinity Calculator in Excel.
Brendan: What? Where's that?
Paul: You mean you don't know how to use the Infinity Calculator? FFS!