If you're looking at the deal listings at Publishers Marketplace you'll see "good deal" "nice deal" "significant deal" over and over again.
The reason is that Publishers Marketplace codes deals within a dollar range as "good" "nice" "significant" etc. They set the categories, we just click which one best describes the deal we're posting.
Of course, I've tried to list some of my deals in other ways:
"last gasp deal"--exactly as much money as I could wring out of the editor without turning him upside down and shaking loose spare change from his pockets.
"bargain of the damn century deal"--not anywhere near as much money as this book is worth and going to earn, but damned if I could find anyone who was smart enough to see that
"in the interest of long term relationships deal" --a figure not as near to the book's value as I'd hoped I'd get but we'll get you the next time
"holy shit deal" --more money than I thought anyone in their right mind would offer, and I'm taking it so fast your head will spin, here's the signed contract personally delivered to the office, can I have the check please.