It means smeared with a fatty or sticky substance. Inflection of smearing or smearing, which means impregnated with fatty or sticky substance.
1º_ Smeared or stained with a creamy or viscous substance; By its etymology, in principle it would be "battered in mud". 2º_ In lunfardo it is used as "bribed, bribed". 3º_ Participle of the verb embadurnar .