プツリ

プツリ, ぷつりputsuri

adverb

1. (breaking) with a snap (of a thread, string, etc.)
2. (ending) suddenly (of a call, communications, etc.)
3. piercing (e.g. with a needle)
4. squashing (something small; e.g. an insect)
5. breaking out (e.g. of a pimple)

Study it in Yanamino