know the difference between one's ass and one's elbow

English dictionary entry

Meanings

verb
  1. Synonym of know one's ass from a hole in the ground.

Word forms

know the difference between one's ass and one's elbow knows the difference between one's ass and one's elbow knowing the difference between one's ass and one's elbow knew the difference between one's ass and one's elbow known the difference between one's ass and one's elbow
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