Ejaculating dildos include a chamber and bulb or pump built to release a fluid (usually a water-based lubricant you supply) at the tip, simulating ejaculation. Most are built on a realistic shape, since that's the effect this feature is designed to complete. A few are also strap-on compatible, crossing into
Strap-On Dildos, and one fantasy piece over in
Fantasy Dildos squirts too.
How the Mechanism Works
A bulb, pump, or plunger built into the toy pushes fluid you've loaded beforehand out through an opening at the tip, usually timed to whenever you squeeze or press it. Fill the chamber before use, not mid-session, since most designs aren't built to be refilled quickly.
What to Fill It With
A thin, water-based lubricant is the safest and easiest fluid to use, since it won't damage the internal chamber or leave residue behind the way a thicker or oil-based liquid could. Warming the fluid slightly beforehand adds to the realism for a lot of people.
Cleanup Takes Extra Time
The internal chamber needs to be flushed with warm water after every use, not just the outer surface, since leftover fluid inside is where residue and odor build up over time. Let it air dry fully, ideally standing so any trapped water can drain out.