Modern: If you or your partner ejaculates during unprotected sex, you or they have a chance of getting pregnant.
Older: 'Wretched inmates!' I ejaculated, mentally, 'you deserve perpetual isolation from your species for your churlish inhospitality.'
-Wuthering Heights by Emily Bronte
Women occasionally wake up in the morrning to find their pantieswet. When guys wake up and find semen in their underwear it's called wet dreams. Just as women jill off where men jack off, ejilculate is the feminine term for "ejaculate"
My gf told me she woke up and found her panties really wet, so she figured she'd gotten pretty good and slippery in her sleep, without my help. If I'd helped her, she'd have cum so loudly the neighbors would crab, and she'd have woken up as well. She doesn't remember getting off but that she just figured it was her ejilculate.
When someone gets wasted at the beginning of a party and has to leave or passes out. It can also refer to the phenomenon of making party plans for Saturday night but getting so drunk or staying up so late on Friday that you can't make it.
You: "Dude, you left my party at 9pm. What happened to you?"