In the 1995 comedy musical movie "Cannibal! The Musical", there is a song called "That's All I'm Askin' For!". Part of the song goes like this:
It ain't a lot to ask. I'm sure we'll get it fast. A friend of mine was mining and he made a lot of cash. He made a gazillion dollars, how is that! That's all I'm askin' for!
Video clip of the part I quoted: https://youtu.be/xkmHnswr0yk?t=98
I have two theories:
- It could mean that he's using "how is that!" as a "question", as in "How is that, huh? Pretty large amount of money, isn't it?!" to basically brag and encourage the others to go along with the journey.
- It could also mean that he's saying "how is that!" as in "how did he make a gazillion dollars, huh? We can, too!". That is, he is using the "fact" that his friend made a "gazillion" dollars as a reason for them to also make that amount.
Maybe I didn't describe the two different meanings too well, but there's at least a slight difference between them.
So which one is it? A lot of expressions like this are very ambiguous to me as a non-native English speaker.