1. A euphemism for a woman’s aroused lady bits.
Ex: “Don’t get a super-soaker over that guy in the plaid shirt.”
2. A children’s large toy squirt gun, that usually holds large amounts of water sprayed at a high pressure by a pumping mechanism.
Ex: That super-soaker blasted my glasses apart.
Origin: @KateCarroway is a blogger for Vice Magazine. She has written a “Girl News” series that uses the term super-soaker similar to how Hecktionary uses “wide on“.