From Conservapedia

Chester Arthur , 21st President of the United States, and called "Walrus" by children who were fascinated by his whiskers

He was born Hyram Ulysses Grant, but a misspelling of his name at West Point gave him the name Ulysses S. Grant ; his "government-issued" initials would cause his new friends at the academy to call him "Sam".

Theodore Roosevelt lived in the Badlands of North Dakota when a cattleman made the mistake of calling him "four eyes"; the physically-powerful Roosevelt would immediately teach him not to do it again.

Knute Rockne All American; his portrayal of George Gipp earned him the moniker "Gipper" A few years after he graduated from Eureka College, Ronald Reagan would land a role in the film; his portrayal of George Gipp earned him the moniker "Gipper"

Nicknames for Presidents of the United States have been bestowed on these men since George Washington. Some are childhood nicknames − such as "Dutch" for Ronald Reagan – while others are political or military names given prior to reaching the presidency. Others are rather disparaging and meant to insult the person in some degree by critics and detractors.

Michael Savage created the "Lord of the Fries" moniker for Barack Obama , due to himself and his wife, Michelle partaking of fast food as often as they tell the American people that they must eat healthier meals.