Women occasionally wake up in the morrning to find their panties wet. 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.