Ruling 345. If some fluid comes out of the penis and the man does not know whether it is semen, urine, or something else – in the event that it comes out with three characteristics: it is accompanied by lust, it comes out with a gush, and one’s body feels weak after it has come out – then that fluid is ruled as being semen; and if none of these three characteristics are present or if even one of them is not, it is not ruled as being semen.