knowing one's head from one's ass

Questions

What does knowing one's head from one's ass mean?

present participle and gerund of know one's head from one's ass

How to pronounce knowing one's head from one's ass

1. Open the pronunciation page — Open the Speakur entry for “knowing one's head from one's ass”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
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