Define Old Harry Meaning

Old Harry
/ˈɔʊld.hæɹi/
An educational test question on some unknown information set by a teacher with unreal expectations.

I hope he doesn't give out another old harry, that'll be a pain in the ass.
By Freddi
Old Harry
An unreasonable question in an unreasonable test made by an unreasonable teacher with unreasonable expectations

Would you believe it, the old cunt gave us another old harry.
By Dusty