Spermatozoa that has dried on a fabric or carpet or anything else.
"Damn when my wife sees all the protein stains on our new bed she'll know I've been fuckin' around'
by WILFONG June 11, 2003
Can you define these popular missing words?
stains caused by ejaculation
i went to a hotel and there were protein stains on the sheets... disgusting
by mr happy January 05, 2004