As a verb, it means the release of semen from the male genital, sometimes with a simultaneous orgasm. As a noun, it describes semen from an ejaculation. See also cum.

The word "ejaculate" is both noun and verb, and is pronounced differently for each. As a verb, it is pronounced:

E - JACK - YOU - LATE

As a noun, it is pronounced:

E - JACK - YOU - LIT

Also, "ejaculate" doesn't pertain only to seminal fluid; it can be used as a synonym for "eject." (The words are closely related.) Thus, any excretion of any fluid can be considered an ejaculation.

This fact opens up worlds of possibilities in the realm of humorous conversation.

E*jac"u*late (?), v. t. [imp. & p. p. Ejaculated (?); p. pr. & vb. n. Ejaculating.] [L. ejaculatus, p. p. of ejaculari to throw out; e out + ejaculari to throw, fr. jaculum javelin, dart, fr. jacere to throw. See Eject.]

1.

To throw out suddenly and swiftly, as if a dart; to dart; to eject.

[Archaic or Technical]

Its active rays ejaculated thence. Blackmore.

2.

To throw out, as an exclamation; to utter by a brief and sudden impulse; as, to ejaculate a prayer.

 

© Webster 1913.

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E*jac"u*late (?), v. i.

To utter ejaculations; to make short and hasty exclamations.

[R.] "Ejaculating to himself."

Sir W. Scott.

 

© Webster 1913.