Vitamin D is used when reffering to the quality of a blowjob you get from a chickenhead. Vitamin D is the cum you give to the bitch thats on your dick.
"I just gave that bitch Vanessa good Vitamin D 10 minutes ago in the bathroom."
by WhitesDie April 26, 2007
getting dick/wanting dick... usually used by girls.
Im feenin' for some vitamin D tonight.
by hizz June 30, 2004