doorstepping

/D AO1 R S T EH0 P IH0 NG/
verb
  1. 1

    To visit one household after another to solicit sales, charitable donations, political support, etc.

  2. 2

    To corner somebody for an unexpected interview.

noun
  1. 1

    The visiting of one household after another to solicit sales, charitable donations, political support, etc.

  2. 2

    The action of cornering someone for an unexpected interview.

Source: https://en.wiktionary.org/wiki/doorstep, https://en.wiktionary.org/wiki/doorstepping