synfeni Share definition Flag baddest bitch ever. she is a savage queen, and she gets a lot of guys. don't mess wit her bc you'll regret it.she has the best hair ever and you'll be jealous of her if you saw it. boy #1;damnnnnn you saw synfeni the other day?! boy #2; ye, she looked hot ASF synfeni by natspammm February 10, 2018 0 0 Get merch Get the synfeni mug. Buy Now — $32.95 See more merch