I'm loving Investopedia's (somewhat exhausting) list of investing buzzwords. A few of my favorites:

Angelina Jolie Stock Index: created by Fred Fuld of Stockerblog, this index is made up of companies linked to the actress. Think stocks of movie studios and producers: Sony, Viacom, and Time Warner. "Because Jolie's films usually earn large box-office revenues, the companies that produce these movies should have higher profits," says Investopedia. There may be something to this: According to Stockerblog (via Seeking Alpha), indexes that track three celebrities—Gisele Bündchen, Heidi Klum, and Angelina Jolie—have outperformed the Dow over the past six months.

Aspirin-Count Theory: hypothesizes that stock prices and aspirin are inversely related. The theory, which has never been formally tested, says that as stock prices fall, more people are popping painkillers to get through the day.

Back Up the Truck: taking a large position in a stock. "Typically, when someone is willing to back up the truck on a financial asset, this implies that they're extremely bullish on that asset's performance." Lately, Bill Gates has been backing up the truck on Canadian National Railways and Mexican stocks, Ken Heebner is loading up on commodity stocks, and Carl Icahn is way into biotech.

Big Uglies: old companies in gritty industries like mining and steel. In other words: unsexy investments.

Drill-Bit Stock: shares that trade for less than a dollar. If you're intrigued by drill bits, check out Motley Fool's "Why We Love Wild Penny Stocks."

Gunslinger: a "high-strung portfolio manager who, looking for high returns, invests in very high-risk stock." Ken Heebner comes to mind.

One-Night-Stand Investment: a brief love affair with a stock. According to Investopedia, it's when you buy a stock with the intention of holding it for the long term, but in the harsh morning light, you panic and sell.