Prince Harry's controversial memoir "Spare" leaked in Spain.
"Spare" covers Harry's experiences and life lessons, according to the publisher.
Leaked details reveal the alleged altercation between Harry and William and Harry's thoughts on Camilla.
#ShutUpHarry trends on Twitter as users criticize Harry's revelations.
Harry's book, to be released on January 10, is expected to detail his tumultuous relationship with his family.
Twitter users call Harry a "man child" and compare Meghan to a "narcissistic wife."
Criticism also aimed at the royal family for continuing to share personal details publicly.