Peaking meaning : To reach a highest degree or maximum. To rise or extend into a peak or point; to form, or appear as, a peak. To raise the point of (a gaff) closer to perpendicular. To become sick or wan. To acquire sharpness of figure or features; hence, to look thin or sickly. To pry; to peep slyly. The act of something reaching a peak. Peaky; sickly; pining