It means they are all green and wrinkled.
Or they are a very tightly-playing poker player who is also prone to spoonerisms who meant to say “I feel like a billion mucks!”
Punctuation is key.
I feel a 100%, better than yesterday…
Leave the article out, thus:
“I feel 100%, better than yesterday.”
- I love you 100% more today than yesterday
But it’ll be 150% tomorrow*
Nah, that sucks. 