(~s)
1.
A ~ is a mad person who is violent and dangerous.
...a drug-crazed ~.
N-COUNT
2.
If you describe someone’s behaviour as ~, you are emphasizing that it is extremely foolish and uncontrolled.
A ~ driver sped 35 miles along the wrong side of a motorway at 110 mph.
= lunatic
ADJ: ADJ n emphasis
3.
If you call someone, for example, a religious ~ or a sports ~, you are critical of them because they have such a strong interest in religion or sport.
My mum is turning into a religious ~.
...football ~s.
= fanatic
N-COUNT: supp N disapproval