fotsa
A germanic cunt. One of german or saxon origins that behaves in way that is worthy of being called a cunt.
Oi, fotsa, you spilled your Keith's in my curry.
fotsae
The phrase 'fotsae' stems from the two words 'thought' and 'so' as if to say 'I thought so', people say 'Ah fotsae'. Commonly used in the Linlithgow area of Scotland.
Going out tonight ?
Yes
Ah Fotsae !
Yes
Ah Fotsae !