Gabwah
To get so shocked and happy you might wet yourself. Also used when you think everything is going your way and you start yelling nonsense.
I just got a perfect score on my math test and I gabwahed so loud the teacher thought I was having a seizure.
When my crush texted me first, I gabwahed like a feral raccoon with a sugar high.
I saw my dog eat my homework and I gabwahed because I thought it was a dream.