Peanuts (shown in-shell) mostly caption snacks, allergies, or baseball-game culture (peanuts and Cracker Jack), and 'peanut gallery' idioms occasionally get referenced when someone wants to dismiss unsolicited commentary. It joined Unicode in 2017, and the twin-lobed shell design is consistent enough that it's rarely confused with any other food emoji.
Keywords: food, nut, peanut, peanuts, vegetable