Learn English – What does salt and slug mean in IT

For the sake of giving this a fun answer in case you're asking in earnest...

Fap is an internet neologism, an onomatopoeic intransitive verb referring to the act of male masturbation, whose sound is imitative of the associated slapping of testicles against the body. Fapping refers exclusively to male masturbation; female masturbation is (in context and by association, but very rarely in practice) referred to as paffing or squishing. Reportedly it has its origins in the Japanese-language comic sound effects used in manga, in reference to the same act.

Yes, technically if could be considered downloading/uploading, but if you use it that way it may get confusing.

Downloading/uploading is generally used when you connect the computer to a distant source, for example a server on internet. If you use it for small devices, it's not as obvious which direction is up or down.

If you for example have a network storage unit in your network, it's not at all clear if it should be considered as a server or a storage device, and uploading would have completely different meaning depending on what definition you choose.