A way to describe the type of fast growth that VC likes which is up and to the right like a hockey stick. When pitched by founders, it is often accompanied by a y axis that isn't labeled or a growth percentage that doesn't include initial value.
Matthew: We experienced 1200% user growth in the past week. Our growth is as hockey stick as it gets.
Sam: How many users did you start off with.
Matthew: You know... I didn't need to take this meeting. VCs are lining up to fund me
We are wildly overoptimistic about our future growth prospects.
Our growth rate may look linear (some would say flat), but that's how most of a hockey stick looks. Once we hit that curve, we'll blow up!