hat-loading

A financial term that allows for extra compensation when a member of staff is required to wear multiple "hats" - hence hat-loading

Dominic asked his manager "Please sir, may I have some hat-loading for this extra role that I've taken on this summer".
"Certainly can!", the manager replied, "You are worth many employees and it is only fair that you be compensated for wearing extra hats".

hat loads

when you have a large quantity of a item

"you got any of that stuff mate"
"yes me ol china son i got a hat load me old pal hat loads I tell ya son"