A crush fetish is a fetish and a paraphilia in which one is sexually aroused when someone crushes objects, food, and sometimes small animals (frequently insects) with their body, usually under their foot, or when crushed oneself. The term soft crush refers to the more common fetish surrounding videos involving inanimate objects (such as food) or small invertebrates (e.g. insects, snails, worms, arachnids) being crushed, while the term hard crush refers to such videos involving larger animals with vertebrae, and arguably more pain-susceptible animals (e.g. reptiles, birds, mammals).
A trample fetish involves one person treading upon another. The preference could be barefoot, high-heels, flip flops, socks and sandals, and so on, depending on the fetishist. Most soft fetishists prefer to distinguish themselves from hard crush fetishists, believing that films with larger animals give the entire group a bad label.