This is similar to colloquialisms that aren’t universally understood. Using phrases or acronyms that are a mystery to the uninitiated only excludes them from the sale. In real estate, using FSBO’s and “due on sale clause,” for example, may leave some prospects out in the cold. Computer-oriented businesses need to be especially careful, as this industry has acronyms for its acronyms (PCMCIA, WYSIWYG, bits and bytes, etc.).
Try to avoid speaking over the prospect’s head. When you have no choice but to use a phrase or acronym, take the opportunity to explain it the first time you use it, and bring the prospect into the “inner circle.”