A hyperendemic medical condition caused by forgetting to wash one's hands post-masturbation. Transmission occurs via tactile association between infected and susceptible individuals. Symptoms include extreme clamminess of the hands; a smell can usually be ascertained as well. Objects at risk of contamination include door knobs, refrigerator handles, light switches, and computer mouses especially. At present, the only known vaccination is castration.
Note: DF cannot be considered an STD because masturbation does not count as sex.
Doctor: "I'm afraid you have DF."
Josh: "Is it curable?"
Doctor: *Sighs* "No, not really."
Girl: "Oh my god...you have dick fingers!"
Guy: "I guess I forgot to wash my hands."
A person that has extremely fat fingers. The fingers look like dicks rather than fingers. The cause of this is unknown however speculation is that it is caused by an illness know as dickfingervitus. People with dick fingers should be encouraged to wear black gloves to give a slimming effect on the fingers.