1) To eject swiftly.
2) To utter suddenly.
3) To blow a full-on shed-full of baby-batter out of your jap's eye.
2) "Oh!" Thomas ejaculated, "That came as a surprise."
3) I have just ejaculated into your mother's vaginal crevice.
Older Definition: To shout
Older: 'Wretched inmates!' I ejaculated, mentally, 'you deserve perpetual isolation from your species for your churlish inhospitality.'
-Wuthering Heights by Emily Bronte