These are my favourites from the list of new-word entries of January 2020 in Oxford English Dictionary (OED):

• awedde, adj.: “Overcome with anger, madness, or distress; insane, mentally disturbed.”
• bochur, n.: “A boy or young man; spec. a student of Talmudic and rabbinical writings at a yeshiva (yeshiva n.). Cf. yeshiva bochur n.”
• bridge-burning, adj.: “That burns bridges (literally and figuratively). Cf. bridge n.1”
• broigus, adj. and n.: “Angry; irritated.”
• buka, n.: “A roadside restaurant or street stall with a seating area, selling cooked food at low prices. Cf. bukateria n., mama put n. Frequently as a modifier…”
• chichi, n.2: “Usually in plural: a woman’s breasts. Also occasionally in singular: a breast.”
• Chicken Licken, n.: “A person who panics easily, or spreads alarm amongst others; = Chicken Little n.”
• chutzpadik, adj.: “Esp. in Jewish usage: showing chutzpah; impudent, impertinent; audacious, very self-confident.”
• dulce et decorum, n.: “The belief or ideology that to die in battle for one’s country is glorious or noble. Cf. dulce et decorum est n.”
• e-waste, n.: “Worthless or inferior electronic text or content. rare.”
• eyelessness, n.1: “Lack of fear of, or reverence or respect for, authority.”
• farkakte, adj.: “Covered in excrement. rare.”
• franger, n.: “A condom.”
• gist, v.2: “transitive. To reduce (a text, document, etc.) to its essence or gist; to condense, summarize, or précis.”
• hen scrat, n.: “A scratch-like mark, esp. a piece of untidy or illegible handwriting; a hen scratch (hen scratch n. 3). Obsolete. rare.”
• jam, adj.2: “Among homosexual people (esp. men): designating a heterosexual person (esp. a man).”
• jerkweed, n.: “An obnoxious, detestable, or stupid person (esp. a male). Often as a contemptuous form of address. Cf. dickweed n., jerkwad n.”
• Kannywood, n.: “The Nigerian Hausa-language film industry, based in Kano; Kano regarded as the centre of this industry. Cf. Nollywood n.”
• kvetching, adj.: “Characterized by complaining or criticizing; that complains or criticizes.”
• mentionitis, n.: “Originally: a tendency to mention something for the sake of comprehensiveness or exhaustiveness, rather than relevance (now rare). In later use: a…”
• sef, adv.: “Used for emphasis after a statement or rhetorical question, often expressing irritation or impatience.”
• send-forth, n.: “A celebration or event to mark a person’s departure; a send-off. Frequently as a modifier, as send-forth ceremony, send-forth party, etc.”
• tokunbo, adj.: “Denoting an imported second-hand product, esp. a car.”
• wankstain, n.: “A semen stain.”