The closest thing one can have to a double feed in a common pistol, and I suppose it would qualify as the term, would be an inertial feed, though those rarely present as a "double feed" and are more frequently seen as a failure to go into battery due to the rim being in front of the extractor since it's most commonly the last round in the mag.
In the case of an inertial feed that presents as a double feed, the pistol recoils to the rear with fast slide velocity, causing the top round in the magazine to Move forward in the magazine as the pistol is moving rearward. Think glasses on a table as the table cloth is pulled away. If the round moves forward enough it can begin to chamber while the slide picks up the second round (if it has the opportunity to rise to be contacted by the feed rib, which it often does not)... this looks like a double feed, and I suppose it sorta is, but it's more accurately described and diagnosed as an inertial feed.
