The Third Degree Meaning
Give someone or get the third degree designates a close interrogation.
The use of the phrase is derived from the brutal form of police interrogation of the same name, well-known in the American crime fiction.
The origin of the phrase may refer to the third degree of Freemasonry and the rigorous procedures to advance to that level.
Example: I don't know why you always give me the third degree every time I hang out with my friends.