the.com/ejaculation

means A sudden expulsion — most commonly of semen during sexual climax, but originally (and still, in older or technical usage) any abrupt burst, whether of fluid or of words, like a startled exclamation.

from From Latin 'ejaculari,' meaning to throw or dart out, built from 'e-' (out) plus 'jaculari' (to hurl a javelin), itself from 'jaculum,' a dart or throwing-spear. For centuries the word simply meant any sudden verbal outburst — a short, sharp prayer or exclamation flung out like a spear. The sexual sense rode along as one specific application of 'suddenly hurled forth,' and by the modern era it had crowded out the word's older, more innocent habit of describing surprised speech.