The best price in the world. FREE. It is pronounced like a would be total on a bill. The only better price is, "We'll pay you to take it". Extremely common at volunteer firehouses across America.
When something is free, but you want it to sound rad and funny so you add .99 cents too it. sounds like 3.99 but its really free with a small price... see example
Friend: Hey your a fag
You: How bout I punchasize your face?
Friend: Oh yeah, how much?
You: I'll punchasize your face for free.99!
Proceed to punch friends face. The .99 addition to your free punch was the pain he will be feeling after.