noun, noun or participle which takes 'suru', transitive verb
swallowing and spitting out
Formal or literary term for the act of taking something in and then expelling it; can be used literally or figuratively. Rare in everyday speech.
彼はその言葉を呑吐するように繰り返した。
He repeated the words as if swallowing and spitting them out.
Compound of 呑 (don, 'swallow') and 吐 (to, 'spit out'). The exact historical derivation is uncertain; it is a Sino-Japanese compound used in literary contexts.