ズボッと

ズボッと, ずぼっとzubotto

adverb

  1. (going) right into (a tight space)
  2. (sinking into) deeply and suddenly
  3. (popping) out
  4. (coming out) with a pop
  5. with a squelch

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences