We have a 'fifty-fifty' chance of succeeding. [=we are as likely to succeed as we are to fail]
The bill for dinner came to $43, and she gave him a 'fifty'.
They divided/split the expenses 'fifty-fifty'. [='equally']
(..) of this stuff is out there. But I mean, come on, look at this. Look at this sweater. I mean, this is just beautiful. Wow, this is really soft. Three hundred and fifty dollars? Down from . You're saving, like, bucks. Both logic and math are taking a serious hit today. (..)2004 TvShow: Friends Title: The One with the Birth Mother Season: 10 Episode 9