a boaster is a form of:

Colander



noun
1.
(a bowl shaped container with holes in the sides and, bottom, used to drain water from vegetables, etc) ចានសម្រាប់ត្រង, តម្រង
ENGLISH MEANING
noun
1.
A utensil with a bottom perforated with little holes for straining liquids, mashed vegetable pulp, etc.; a strainer of wickerwork, perforated metal, or the like.