According to the Book of Mormon

Book of Mormon

The Book of Mormon is a sacred text of the Latter Day Saint movement that adherents believe contains writings of ancient prophets who lived on the American continent from approximately 2600 BC to AD 421. It was first published in March 1830 by Joseph Smith, Jr...

, a Rameumptom is a high tower or stand from which the apostate Zoramites gave a pre-determined, vain prayer. The practice of preaching from a Rameumptom was viewed by several Book of Mormon characters (including Alma the Younger

Alma the Younger

According to the Book of Mormon, Alma, the son of Alma was a Nephite prophet often referred to as "Alma the Younger" to distinguish him from his father, who is often referred to as "Alma the Elder"...

 and his companions) as sinful..

Based on this passage in the Book of Mormon, the term "Rameumptom" has come to have a metaphoric meaning in Mormon culture, signifying self aggrandizement or hubris

Hubris

Hubris , also hybris, means extreme haughtiness, pride or arrogance. Hubris often indicates a loss of contact with reality and an overestimation of one's own competence or capabilities, especially when the person exhibiting it is in a position of power....

.