Previous definitions:
1.
A cone-shaped bag used to squeeze out dough, whipped cream, fillings, etc. to form pastries, decorate cakes, etc. It has two ends - the small end is fitted with tips of varying sizes and designs through which the material is squeezed out; the large end is for filling the pastry bag with the material.
As defined by Mechanical Turk
on November 14, 2011