insertor

One who or that which inserts.

Noun

  1. One who or that which inserts.
  2. One who penetrates another during sexual intercourse.
    • At the time when I observed him in an act of fellatio, he played the insertor role. - 2017, Laud Humphreys, Tearoom Trade: Impersonal Sex in Public Places:
  3. A machine that inserts components into envelopes for mass mailing.

Origin

From insert + -or.

Forms

insertors inserter