manstration marks

The socially awkward pass-through, crotch stain common to active hemorrhoid bleeding; similar to a ‘menstration skid’, but more common to the opposite gender.

Damn, check it out. Do you think we should tell him that he’s got a funky thing goin’ on in his shorts?
Let’s give it a bit of time; wait until he starts leaving manstration marks on the furniture.
Right. That way he won’t think that we’re just fuckin’ with him.