The Collaborative International Dictionary of English v.0.48:

Obtrude \Ob*trude"\, v. t. [imp. & p. p. Obtruded, p. pr. &
   vb. n. Obtruding.] [L. obtrudere, obtrusum; ob (see Ob-)
   + trudere to thrust. See Threat.]
   1. To thrust impertinently; to present to a person without
      warrant or solicitation; as, to obtrude one's self upon a
      company; to obtrude one's opinion on another.
      [1913 Webster +PJC]

            The objects of our senses obtrude their particular
            ideas upon our minds, whether we will or no. --Lock.
      [1913 Webster]

   2. To offer with unreasonable importunity; to urge unduly or
      against the will. --Milton.
      [1913 Webster]