know which end is up
(Redirected from don't know which end is up)
English[edit]
Alternative forms[edit]
Etymology[edit]
From the common marking this end up on parcels to guide proper transport.
Pronunciation[edit]
Audio (AU) (file)
Verb[edit]
know which end is up (third-person singular simple present knows which end is up, present participle knowing which end is up, simple past knew which end is up, past participle known which end is up)
- (idiomatic) Synonym of know one's stuff, especially in the context of possessing sound judgment or common sense.
- He was too stoned to know which end was up.
- 1992, Dorothy Garlock, Glorious Dawn[1], →ISBN:
- He's so in love, he doesn't know which end is up.
- 2010, Gordon Lish, “The Friend”, in Collected Fictions, →ISBN, page 243:
- “[B]elieve me, she is some catch for the right boy—for a boy which knows which end is up.”
- 2011, Richard North Patterson, Silent Witness, →ISBN, page 277:
- “When someone doesn't know which end is up, who knows why they do things.”
- 2011, Catherine McGuinness, Emperors' Clothes[2], →ISBN, →ISBN:
- The whole company is in disarray! Nobody knows which end is up.
Usage notes[edit]
Frequently used in negative constructions to discuss inexperience or failing to understand a situation. Cf. know one's ass from a hole in the ground.