Trampling refers to the BDSM sexual activity that involves being trampled underfoot by another person or persons. Trampling is common enough to support a sub-genre of trampling pornography.
Because trampling can be used to produce pain, the trampling fetish for some adherents is closely linked to sadomasochistic fetishism.
A similar fetish is to imagine themselves as being tiny under another's feet, or being normal size, but being trampled by a giant person. This is known as "giant/giantess fetishism" or macrophilia. It is not the same as trampling.
The most common form of trampling is done by a female walking on a male submissive and is usually done barefooted, in socks, nylons, or shoes. The trampler will predominantly walk, jump and stomp on the person's back, chest, stomach, genitalia, face and in some rare instances, the neck.