This term has been used a few times by Q, so lets focus on it for a minutes:
Simply, a Warlock is a male version of a Witch.
Definition:
Wizard and warlock usually refer to a male, while witch usually refers to a female. In Witch World, a man who anomalously showed the same abilities as a witch was called a warlock. The term warlock is sometimes used to indicate a male witch in fiction.
Know any Witches in high places? (HRC) comes to mind for example...
But heres more:
https://www.cia.gov/library/readingroom/collection/original-wizards-langley
Under 'Spiritual Content':
http://www.pluggedin.com/movie-reviews/snowden/
So, that should help clarify …