look up any word, like half chub:
 
1.
A two word replacement for the adjective "crazily." It is typically used by younger individuals that do not yet know or care that it is improper grammar.
Dude, he is FAST! He ate that hamburger like crazy!
by Ben L. September 10, 2005
 
2.
1. the surprise of having a certain skill,
2. fast or very skillfully
We ran like crazy when the cops showed up, we could never do it again if we tried.
by TFS February 19, 2005