"Yay!" (4)

(Other definitions for hurrah that I've seen before include "Joyful exclamation" , "One cheer?" , "Expression of joy (H, not Y)" , "Exclamation of approval or joy" , "Last ____, final act" .)

(Other definitions for woo that I've seen before include "Try to attract" , "Court (someone)" , "Court; importune" , "Do courting" , "Court a lady" .)