Master Fattie or Fatty?

[Bestest Handsander]

I know the plural is master fatties, but is the singular fatty or fattie?
Inquiring minds want to know!

 

[Dwayne]

I think "fattie" in American usage, "fatty" in British.

 

[RicodJour]

Dwayne wrote:
> I think "fattie" in American usage, "fatty" in British.

Phattie.

R