Large, round, transparent or tinted glasses. Usually of the non-prescription variant. Used by amateurs and/or professional entertainers in the porn industry. Used mainly to prevent a cum shot to the eye/s
shortly after performing fellatio. Cum Shields have also proven themselves to be quite useful in today's bukkake scenes. Usually accompanied by a large goblet or chalice. Most commonly made of glass, and held under the chin to collect any run down of semen.
Example: "Bro did you check out that sick POV blowjob that was just released the other day? She can really rock those Cum Shields!!!"
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi