He stumbled upon the picture on Instagram, but it had come from a Tumblr blog in which his image was being used as the stepson of a fictional "teenage stepdad".
He said he was amused by it, but admitted that as a child he would have found it "confusing and sad".
Mr Smith's discovery has now gone more viral than the original meme.
He has been in touch with its original creator, and said he was happy that the image has not been used in a "mean spirit".
