dildo

A dildo is a penis-shaped object used for sexual penetration.

Dildos are typically made of silicone, rubber, glass, or other materials and come in various sizes.

The word is straightforward rather than vulgar—it's the standard term used in sex shops, medical contexts, and casual conversation alike: She bought a dildo online.

As an insult, dildo calls someone stupid or contemptible: Don't be such a dildo.