piattj
Ejaculation - interesting concept of an inanimate object having that ability.

Emit, eject, egress, extrude, ebb, exude, escape, extricate, extract, expropriate, expel, excrete, ebullition, educe, eventuate, effluence, effusion, evict, elicit, emancipation, emergence, exit, entice, evacuate, ease, eviction, eviscerate, evoke, empty, eruption, and enuresis (and there are probably more) could all to a lesser or greater extent liberally illustrate the escape of fluid from a vessel. But no, ejaculation the noun was chosen. Such a tightly focused thought process is to be celebrated - bravo piattj

As for cleaning the windscreen afterwards with the bedroom curtains Pegleg (or other room's drapes) her indoors would turn your's (or mine) scrotum into a Grappa saccus