know what's what
English
Verb
know what's what (third-person singular simple present knows what's what, present participle knowing what's what, simple past knew what's what, past participle known what's what)
- Alternative form of know what is what.
know what's what (third-person singular simple present knows what's what, present participle knowing what's what, simple past knew what's what, past participle known what's what)