Definitions by Trendshnetter

dfing 

Double fisting.

Taking two fists up your preferred sex hole.

Two penises or two dildos suffice as well.

Stylized as DFing.

Mostly used as an Instagram hashtag.

Omg. I spent the night double fisting my boyfriend with my neighbor. #DFing.

dfing by Trendshnetter September 15, 2016