You are in the middle of having sex. She asks you to spank her ass so you waboom her. A waboom is an ass spank with a mighty swing and mighty force during sex.
(Wah-wOOm)
Not just exclamation!
Wawoom can be used in practically any situation!
You know wawoom is real because it even has a cringy version for non-believers; "wewoom!"
Wompa: Mom, my fish died. And my geetair broke while I was playingstairway to heaven.
Shan: Silly goose! It will be okay! Wawoom!
Wompa: That made me feel a lot better. Thanks brutha.