secret stain

Secret wank stains sometimes found in absurd locations.

If one can collect enough stains it is said he or she will be rewarded in buckets of gold and a man's weight of sapphire.
Secret stains are as perhaps assumed quite secretive, and most visible during early daylight. If one is to confirm something is indeed a stain of the sort one has to smell to recognize the unique tuna signature of the wank stain.

I was lurking about in Teena's flat when, through carefull investigation and sniffing, I found several secret stains.