Update my finsta Share definition Flag A group of 20 something year old idiots who use this phrase to say they are going number 2 . "Aww man that taco bell went right through me, I gotta go update my finsta!" Update my finsta by Updatefinsta August 24, 2019 0 0 Get merch Get the Update my finsta mug. Buy Now — $32.95 See more merch