necknut Share definition Flag When a person has swollen lymph nodes. When you feel them, they feel like giant balls on either side of the neck Kenzie: "Omg, you have some major necknuts" Seth: "those are just my swollen lymph nodes" necknut by smartshit November 29, 2016 0 0 Get merch Get the necknut mug. Buy Now — $32.95 See more merch