The phrase "truffle butter" is a slang term often used to describe a sexual act involving a particular body fluid. It is considered explicit and vulgar. Full definition
Melt some of the White Truffle Butter with a tablespoon of olive oil and sauté the scallops for about 3 minutes on one side until they start to brown. (theartfulgourmet.com)
Cast iron steak with truffle hasselback potatoes (because I couldn't resist the jar of truffle butter at the market) and thyme roasted tomatoes on the vine (because the tomatoes just looked so... (baconandsouffle.com)