When a female fingers and pleasures herself; girls masturbating basically. Severing= fingering, "destroying" Velvet=vagina, pussy, twat and "the" obviously means "the"
Breathe Carolina <3 - Velvet : "...Princess, I just wanna witness, watch you, severing that velvet, I won't say the word, say the word"
girl 1: OH EM GEE! WHERE THE HELL WHERE YOU?
girl 2: sorry love, i was busy severing the velvet
girl 1: umm,....yeah.....