when a man changes his hairstyle. Usually switching from a comb-back to a comb-over.
Abby: I noticed you changed your hairstyle

Eric: What about it?

Abby: I like it

Eric: It's a man's perogative

Abby: Yes
by Abby Clintward May 15, 2011
= to command
"I said the word, ma'am," said Mr. Bumble. "The prerogative of a man is to command." - Mr. Bumble, Oliver Twist

Thus man's perogative = to command.
by Mr Bumble August 21, 2011

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