insucking

plural insuckings

1. A sucking inward.

   Yoritomo met their smiles and kowtowings and noisy insuckings of breath with an austere dignity that I took pains to imitate.

   1910, Robert Ames Bennet, The Shogun's Daughter

   1 more example

   Her initial response to this was a retropulsion or insucking of the tongue, so severe that speech was impossible, and she was in continual danger of swallowing her tongue.

   1973, Oliver Sacks, Awakenings