Drinkatite: formed from the word 'appetite', this refers specifically to the measure of a person's alcoholic consumption and/or tolerance.
Bob: "Sarah sure has an appetite for booze"
John: "I believe you mean she has a large 'drinkatite' old chap"
Bob: "When did you start talking like a pommie?"
*Sarah vomits on Bob's shoe*
John: "The drinkatart just vommied one you!"
I haven't had a drinkatite in like a week
I just lost my drinkatite