Stample is a word made up to cheat in scrabble. It is not currently found in any English dictionaries and is not sufficiently different from trample to justify an entry.

Stample is a descriptive, almost onomatopoeic, word to describe the act of being trampled on in a stampede. Usually by a herd of elephants, bison, or water buffalo.

This word comes in handy whilst on safari, or at your local rodeo when describing accidentally falling in to the steer corrall after a few drinks.

The act of being trampled in a stampede.