mousetrapping

/M AW1 S T R AE1 P IH0 NG/
verb
  1. 1

    To trap; to trick or fool (someone) into a bad situation.

  2. 2

    To prevent (the user) from leaving a website by opening another copy when it is closed.

Source: https://en.wiktionary.org/wiki/mousetrap, https://en.wiktionary.org/wiki/mousetrapping