Sevie Slayer Share definition Flag A sevie slayer is anyone older then 7th grade dating or liking a "sevie". Chick 1: I like Logan! Chick 2: The sevie?! Chick 1: Yeah Chick 2&3: Ohhh SEVIE SLAYER!! Sevie Slayer by Taylor(: November 7, 2012 0 0 Get merch Get the Sevie Slayer mug. Buy Now — $32.95 See more merch