What is Calvert?
1.
v. to make up outlandish tales of personal exploits for self gratification. To purport to hold some career or position that one does not have to impress other people.
n. a person who lies, deceives or embellishes to make themselver look tougher, more experienced or smarter than they are.
"That guy claiming he was a Navy SEAL is such a Calvert. He's never even been in the Navy."
or
"Don't try and pull a Calvert on me, we all know you don't own a Porsche"
See