| 1. | to intimidate or frighten psychologically, or make nervous (often fol. by out): to psych out the competition. |
| 2. | to prepare psychologically to be in the right frame of mind or to give one's best (often fol. by up): to psych oneself up for an interview. |
| 3. | to figure out psychologically; decipher (often fol. by out): to psych out a problem. |

psych (so) up
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psych up
Excite emotionally, as in The chorus was really psyched up for performing in Symphony Hall. [Slang; c. 1970]