Verb- The process of cumming (generaly a load greater than 2oz) on your dog or other member of the k-9 family then taking a picture of the "frosty dog" and proceed to send the photo via usps mail to a local stranger.
I frosty dogged the shit out of a poodle and sent it to the local sheriff.
When a guy isn't circumcised and he cums inside the foreskin and when he pulls it back it resembles frosting.
so I was fucking this girl last night and I went to cum on her face and I got a frosty dog. sex cum uncircumcised
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