What is Gungho?
1.
To be gungho about something is to be passionate, excited, or all about it. To like/love something - a lot.
She's all gungho about Italian food.
---
"Are you doing anything for the Fourth of July?"
"Nah, I'm not all gungho and everything about all this national pride crap. I mean, we're the United States for crying out loud..."
See
2.
someone who is mentally ill, a fucking loser, or it can also mean someone who is ready to screw at any time of the day.
ex1) Jim called Terry a gungho when he realized he was a democrat.
ex2) when i was not married i was gungho, but now that i am married i'm the complete opposite because my wife is a big fat fucking bitch, or gungho