The common abbreviation is "muff"; e.g., "I'll take me a half a muff."
i forget how fabulous muffulettas are until i am halfway into constructing a version of one for myself. at this realization, i begin to nod my head "yes" with every addition. freshly baked onion bread, cheez (i used fairway's excellent soygouda), layers of coldcuts with mesclun mix between them, and finally; olive tapenade standing in for the olive salad. my jars of relish from central grocery is long gone, and i am nowhere near a trader joe's to pick up a stand-in, but sometimes you just have to fill that belly.
this is not my muff.
ok, that would be all the time i can spare right now for internet fantasy. cheers, y'all.