[krey-zee] 
adjective, -zi⋅er, -zi⋅est, noun, plural -zies.| 1. | mentally deranged; demented; insane. |
| 2. | senseless; impractical; totally unsound: a crazy scheme. |
| 3. | Informal. intensely enthusiastic; passionately excited: crazy about baseball. |
| 4. | Informal. very enamored or infatuated (usually fol. by about): He was crazy about her. |
| 5. | Informal. intensely anxious or eager; impatient: I'm crazy to try those new skis. |
| 6. | Informal. unusual; bizarre; singular: She always wears a crazy hat. |
| 7. | Slang. wonderful; excellent; perfect: That's crazy, man, crazy. |
| 8. | likely to break or fall to pieces. |
| 9. | weak, infirm, or sickly. |
| 10. | having an unusual, unexpected, or random quality, behavior, result, pattern, etc.: a crazy reel that spins in either direction. |
| 11. | Slang. an unpredictable, nonconforming person; oddball: a house full of crazies who wear weird clothes and come in at all hours. |
| 12. | the crazies, Slang. a sense of extreme unease, nervousness, or panic; extreme jitters: The crew was starting to get the crazies from being cooped up belowdecks for so long. |
| 13. | like crazy,
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| cra·zy (krā'zē) adj. cra·zi·er, cra·zi·est
One who is or appears insane: "To them she is not a brusque crazy, but 'appropriately passionate'" (Mary McGrory). cra'zi·ly adv., cra'zi·ness n. |
crazy
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like crazy
and like mad
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like crazy
Also, like mad; like nobody's business. With exceeding enthusiasm or speed, without restraint. For example, We shopped like crazy and bought all our furniture in one day, or Once he's out of the town limits he drives like mad, or The choir sang the Hallelujah Chorus like nobody's business. The first terms employ crazy and mad in the sense of "lunatic" as a hyperbole for lack of restraint; the third implies that no business could be conducted in such an extraordinary fashion. The first and third date from the 1920s, the second from the mid-1600s.
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