What word or phrase does your mother always say?
obturator ob·tu·ra·tor (ŏb'tə-rā'tər, -tyə-)
A structure, such as the soft palate, that closes an opening in the body.
A prosthetic device that serves to close an opening or cleft, especially in the palate.
A stylus or removable plug used during the insertion of many tubular instruments.
obturate ob·tu·rate (ŏb'tə-rāt', -tyə-)
v. ob·tu·rat·ed, ob·tu·rat·ing, ob·tu·rates
To close or obstruct.