Editor's note: Welcome to "Booyah Breakdown," an explanation of certain terms and topics Jim Cramer discusses on his "Mad Money" TV show. Feel free to ask a question if you're confused about something Cramer talks about, but please keep in mind that we do not provide advice on specific stocks. When Cramer speaks, people listen. But while many of you are listening, there are a bunch of you who aren't following skeedaddy's personal lingo. So this week, Booyah Breakdown is giving a lesson in the language of Cramerica. 'Mon Back: Essentially, Cramer's shouting "c'mon back!" or "back up the truck" because he wants to load up -- or buy -- more shares of a stock he considers to be undervalued. So, picture him pulling a big semi trailer up to a loading dock and dumping more shares in the back. For instance, on one of Cramer's April shows that was re-aired on Thursday, he said he thought the shorts were wrong on Eagle Materials ( EXP) and would do a 'mon back on the cement maker. Basically, he thought you should load up on the shares back in April. Pin Action: It's like the domino effect. Something happens to one company and other companies are also indirectly affected. For example, when Anadarko Petroleum ( APC) last week announced the planned acquisitions of Kerr-McGee ( KMG) and Western Gas Resources ( WGR), the pin action was that several other energy stocks also rallied. Why? Because they're perceived to be the next potential takeover targets. So, when similar stocks move in relation to big news at a competitor, supplier or customer, there's "pin action." In that same "Mad Money" April recast Thursday, Cramer said that " UPS ( UPS) will be the single biggest beneficiary of the growth in shopping over the Internet. It's the obvious pin action play." So as a result of Internet selling, the domino effect -- or pin action -- is that UPS wins. En Fuego: It means "on fire" in Spanish. So when Cramer says a company is en fuego, he's saying it's on fire. It's got great fundamentals and a good future. He'll use it to refer to the big picture, too. As an example, on his June 21 "Mad Money" episode he said, "The market was smoking today. And when the market's en fuego, I need you out there looking for trades." So when something's en fuego, it's hot. Kind of like Antonio Banderas.