What is Sneaky-fast?
1.
When you're being so fast, you don't even know you are being fast.
Stealing the bases in baseball, (according to our research teacher).
OR...
When your learning is so sneaky-fast, that you don't even realized you learned the material.
See
Random Words:
1.
<noun> Offensive Chiefly British Slang
The implication that the subject of the insult is indeed so insignificant as to suggest th..