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1.
The act of ejaculating while both the penis and the testicles are within the gaping mouth of a partner.

-Frost=Jizz
-Hippo=Large gaping mouth
-Dude last night Charlotte gave me a frosty hippo
-Holy shit! Her mouth can fit ur tiny dick AND your balls???!!!
-YEAH!!!! wait....
by Señor Peperrmanto August 12, 2010