An alkaloid (C₁₀H₁₄N₂), commonly occurring in the tobacco plant. In small doses it is a habit-forming stimulant; in larger doses it is toxic and is often used in insecticides.
salmon and trout
noun
snout: tobacco or cigarettes.
How often have the words nicotine and salmon and trout occurred in a corpus of books? (source: Google Ngram Viewer )