Yeet is a word that every cringy 12 year old uses for no reason, like those squeakers you would find in Modern Warfare 2 lobbies
dudebro #1"hey man, I'm going to yeet this basketball throw"
dudebro #2: "Man, get your cracker ass outta here, your gonna get beat up"
dudebro #1: "Imma yeet their bodies into a wall then"
dudebro #2 "Okay have fun getting your large ass nose resized"
dudebro #1 "Shut up"