ppl. a. a. Covered with barnacles. b. colloq. Wearing spectacles.

1

1691.  T. H[ale], Acc. New Invent., 80. Cleaned with … Scrapers, if barnicled.

2

1878.  R. Stevenson, Inland Voy., 6. A gleam of spectacles. For though handsome lads, they were all (in the Scotch phrase) barnacled.

3

1884.  Blackw. Mag., Oct., 523. My barnacled barque Drags … heavily on.

4