The jet black Night Fury dragon that appeared alongside main protagonist Hiccup as the deuteragonist in the 2010 movie "How To Train Your Dragon". He is initially aggressive towards Hiccup but becomes friends with him after Hiccup helps Toothless become airborne again, after Toothless' left tail fin was ripped off when Hiccup shot him down.
n. An old woman... (and I mean OLD) that still hunts in bars/clubs and preys on much younger men for sexual favors. A Sabre toothless tiger out-ages a cougar by at least 10-20years and may or may not have all of her real teeth.
DudeA: "Damn! Rebecca's Cougar-ass mom keeps hittin' on me and rubbing my thigh"
DudeB: "NO DUDE! That's Becca's GRANDMA! She's a Sabre toothless tiger!"
DudeA: "I'm gunna need bout 8more beers to hit that shit... and some lube"