panicking

/P AE1 N IH0 K IH0 NG/
verb
  1. 1

    To feel overwhelming fear.

  2. 2

    To cause somebody to panic.

  3. 3

    (by extension) To crash.

  4. 4

    (by extension) To cause the system to crash.

Source: https://en.wiktionary.org/wiki/panic, https://en.wiktionary.org/wiki/panicking