slump buster
n.— «We may have to go to strength here, to the wives of our professional athletes, the women who deal with reality every day while their husbands entertain us with their games and themselves with their “slump-buster” groupies.» —“Spoiled Athletes Have Syndrome All Their Own” by Robert Lipsyte New York Times Oct. 7, 2001. (source: Double-Tongued Dictionary)