what's what

Meaning

1. what things are useful, important, etc.

   She certainly knows what's what.

In the movies · 9

• - What's that on my ass? - What's what?Auto Focus2002
• Barbara will tell you what's what.The Life and Death of Colonel Blimp1943
• We'll get you fixed up with Matthews, I'll tell him what's what.Reservoir Dogs1992
• What's what like?Billy Elliot2000
• Zeena's lived. She's, uh... She knows what's what.Nightmare Alley2021
• What's up? What?The Hate U Give2018
• What's what gonna be?American History X1998
• What's what you love about me?25th Hour2002

Learn it in full scenes

• Auto Focus2002
  • Lenny Pitches Bob a Sitcom
  • Anne Confronts Bob About the Magazines
  • Bob Meets the VTR Salesman
• The Life and Death of Colonel Blimp1943
  • War Starts at Midnight
  • The Home Guard Exercise Turns Real
  • General Wynne-Candy Is Taken Prisoner
• Reservoir Dogs1992
  • The Madonna Theory Debate
  • Mr. Pink Refuses to Tip
  • Mr. White Reassures Mr. Orange

From the same entry

• and what not
• get what for
• or what
• what about
• what - d'you - call - him her it them
• what for
• what if
• what of it
• what's up with that
• what's with
• what's with
• what with