Ë - yo stands for EYO, who would've thought, that a whiteboy, would bring hiphop back?
B - v stands for: "Vampires go Bleh"
Х - kh stands for: Vampires also go kha-kha kha-kha-kha-kha" (
https://www.youtube.com/watch?v=_L4U-X-emWg)
P - r stands for that one video with the russian kid singing gucci gang to his grandmothers and he starts off with prrrt prrrt (
https://www.youtube.com/watch?v=fxjnS_2N2eI)
Ah, I wish the Kazakhifren was here to help me with more letters..