noun
inept detective; bungling detective
Jocular term, a pun on 名探偵 (great detective). Used humorously for a detective who is comically bad at solving cases.
See also: 名探偵
彼は迷探偵と呼ばれるほど、事件を解決できない。
He's so bad at solving cases that they call him an inept detective.
名探偵 means 'great detective', while 迷探偵 is a humorous twist meaning 'inept detective'.
A pun on 名探偵 (great detective), replacing 名 (famous, great) with 迷 (lost, confused).