Probably one of the most badass metal songs ever made, this song was made by Bring Me The Horizon collabing with BABYMETAL
Guy 1: Yo have you listened to Kingslayer yet?
Guy 2: Nah man.
Guy 1: Dude you're missing out!
by idc about your opinion November 02, 2020
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A title you can earn in World of Warcraft. It Requiers you to kill the final boss in the Wrath of The Lich King expansion on either 10 or 25 man mode.
Scrub: Dude!! You guys got server first on the Lich King! Grats.

Leet Raider: Shut up I only talk to other Kingslayers.
by MK Keyo April 22, 2010
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What a fuckboy would call himself
Fuckboy : I'm a kingslayer

Me: ugh Alex you're not a kingslayer you're a fuckboy
by Maybebaby6 November 15, 2016
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Cutting off ones hand and then masturbating in the hope of finishing before you bleed out. Using a picture of a sibling is recommended but not manditory.
Man it sucks Jamie only has one hand left for high fives because that dude pulled off the kingslayer in record time.
by Stoodge101 March 13, 2016
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