ichidan verb, intransitive verb
snap; break suddenly; get cut off
Physical breaking or severing of something under tension, such as a rope, string, or connection. Often implies a sudden, clean break.
釣り糸がぶっ切れて、大物を逃がした。
The fishing line snapped and I lost a big one.
電話がぶっ切れて
The phone got cut off in the middle of our conversation.
ichidan verb, intransitive verb
snap; lose it; become furious
Emotional outburst: suddenly losing one's temper or self-control. Strongly colloquial and often used among younger speakers.
あいつ、急にぶっ切れて机を蹴った。
He suddenly snapped and kicked the desk.
そんなことでぶっ切れるなよ。
Don't lose it over something like that.