With which striker bestows congratulations? (4,2,3,4)
I believe the answer is:
slap on the back
If this is the answer, I'm afraid I cannot explain it.
Can you help me to learn more?
(Other definitions for slap on the back that I've seen before include "praise?" , "Perhaps try to stop choking" , "Congratulate (literally or figuratively)" , "Physically congratulate" , "Gesture or mark of congratulation" .)