Farmers Slang & Its Analogues. 18901909, rev. 2022.
Navigator
subs. (rhyming slang).A potato; tatur. NAVIGATOR SCOT = a hot baked potato. Also NAV.
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1893. P. H. EMERSON, Signor Lippo, xiv. As we were dining, in came North Eye carrying a dish from the bake-house, a sheeps knock over a dollop of NAVS.