I'm gonna shit - When you're about to do something awesome and you yell it ri

When you're about to do something awesome and you yell it right before you go all big and powerful.

I'm gonna shit! I'm gonna throw my shit around! I'm gonna win the game!

I'm gonna shit! I'm gonna throw my shit around! I'm gonna beat you up!

I'm gonna shit! I'm gonna throw my shit around! I'm gonna eat the whole cake!