Any ejaculent expressed under fear of imminent harm or displeasure. Also appropriate to use the adjective form scrame or the colloquially more casual sCREAM.
I had a nightmare and when I woke up, there was scrum all over the place.
I went to see the Goonies in theaters and scrame several times through the showing.
While strangling myself and masturbating, I almost died. I did scream myself though so that is nice.