unsuction

un- +‎ suction

unsuction (third-person singular simple present unsuctions, present participle unsuctioning, simple past and past participle unsuctioned)

1. (transitive, intransitive, rare) To remove suction, such as when suction cups become detached.
   • 2017, White Dialogues, page 107‎:

     Then it will plant its setae onto my cheek, onto the bridge of my nose and onto my dark eyes; it will pivot its torso over the temples of my skull, suctioning and unsuctioning its feet; and as it crawls across my transparent forehead

   • 2018 Bree Bunny to Felicity Fox, "Best Adventure", Enchantimals: Tales from Everwilde

     But... they didn't turn out very well. I unsuctioned and fell right on your newly-made bed.

unsuction (uncountable)

1. (rare) The removal of suction.
   • 2012, Will Self, The Butt:

     When he removed them, it was with an audible 'plop' of unsuction.