skuldugger verb1 •(rare) To partake in skulduggery (dishonest, underhanded, or unscrupulous activities or behaviour).I am not a man to waste energy in hurt feelings. "I assure you I have no intention of skulduggering around to learn the new receipt," I told him. "It was only a suggestion." — 1979 formsskulduggered · skulduggering · skulduggers