To superlie means to tell a very big and important lie, usually to make yourself look better or to trick someone.
Superlying is very bad and can make people not trust you.
Examples:
He will superlie to get the job.
She superlied about her test score.
I don't want to be friends with someone who superlies.
I superlie about eating all the cookies.
She superlies so much, her nose should be as long as a tree!
He superlies about everything, even what he had for breakfast.