It is used in the Batman Beyond series. It is the exclusive reference to money or monetary amounts as there are no dollars or cents.
"That'll cost you 10,000 credz !"
by dw817 August 27, 2015
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Slang word. Abbreviation of the word 'Credit'. Used in reference to telephone 'Top-Ups' offered by pay as you go mobile phone service providers. In some cases the word may be used in reference to 'Bundle' minutes and texts.
'...I cant call you...aint got credz innit...'

or

'...ow you say i mus call you? are you on T-Mobile? No? Youre swag, I aint callin you...thats credz innit!!...?
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