You don;t say what is your work. Is it a restaurant (does a customer want a particular dish, desert, say?) Or are you a caterer (someone wants a "sugar drift" for their wedding cake (I'm thinking, a drift of powdered sugar against the side of the cake - something crazy like that). Or are you a seller of cooking equipment? Then it could be something that takes the granules our of sugar when you grind it to make powdered sugar since they blow it in the air and take only what floats (or "drifts" around). Or maybe the person misheard the sugar part of it.
I once got a call from someone's secretary - they said I'm calling for "Patrick Relly" and i couldn;t for the life of me figure out who it was. She repeated it many times. It turned out to be Pat Cecarellii. It's strange how some people will repeat their approximate pronunciation many times but won;t think to pronounce more clearly when someoen doesn;t understand. So try to think of the entire phrase, it may not be sugar, it may be shoe gadrift or sugared rift or chug ad trift or sugar thrift - obviously none of those but maybe something with neither sugar nor drift. And keep in mind that the "a" of "a sugar drift" might be part of the next word and not an "a' at all - like ashoo gadrift or ash ugad rift - being silly but you get the point.