Definition of truffling in English:
 truffling
noun ˈtrʌf(ə)lɪŋˈtrəf(ə)liNG
mass nounThe activity of hunting or rooting for truffles.
as modifier a truffling pig
 Example sentencesExamples
-  Using his special truffling stick, he extracts the truffle from between the roots.
 -  The rarest mushroom, they're so coveted that truffle hunters jealously guard their favorite truffling spots.
 -  They went truffling with their two white dogs during the winter months, often travelling huge distances in search of the elusive fungus.