A certain amount/measurement of
something that someone will
ask for. A shleb is relative and can mean different amounts depending on the preferences,
greed, and circumference of said person.
Paddy: What do you want in your
tea?
Mary: Ah, just a shleb of milk!
Paddy: Grand so!
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Mary: What do you want on your
toast?
Paddy: Oh just a shleb of
butter will do there Mary!
Mary: Grand!