An exclamation to express the urge to kill the sun as you see it come up and realize the night has to end, after spending the whole night epically partying.
To be such a savage that you will destroy any fag, mother, father, or lil nigga without any feelings or emotion at all.
An example of a slay master would be sir Riley Larry Paul Jones dictator of the fallen but not forgotten ape squad and has been shitting on lil niggas since the womb.