To put into the right psychological frame of mind: The coach psyched the team before the game. To excite emotionally: The children were psyched to see the circus. To undermine the confidence of by psychological means; intimidate: "Depending on whose personality is stronger, one can more easily psych the other\u201d ( Harold C. Schonberg). To analyze, solve, or comprehend. To anticipate or guess the intentions of: "Most others could never approach [his] ability ... to psyche out the opposition's thinking so consistently\u201d ( Steven Brill). Informal To analyze and treat by psychoanalysis. To become confused or mentally deranged. Psychology.