What is the meaning of bust their kneecaps?? - Question about English (US)

Definition of bust their kneecaps? Literally, it means shattering someone's knees with a baseball bat. Figuratively, it would mean to punish someone harshly. |To ‘bust’ means to ‘break’ something. So it means “break their kneecaps”
HiNative is a global Q&A platform where you can ask people from all over the world questions about language and culture. We support over 110 languages.

The Editing Blog - Louise Harnby

3 Ways to Take Measurements (For Women) - wikiHow

Democracy in America. English Edition. Vol. 1

20 BEGINNER QUESTIONS AND ANSWERS THAT'LL HELP WITH YOUR SEWING +

Pirate Cinema

Patellar Fractures (Broken Kneecap) - OrthoInfo - AAOS

BlackBerry or bust: Inside Canadian cinema's Berlinale breakthrough - The Globe and Mail

BBC Learning English - The English We Speak

Patellar (Kneecap) Fracture

6 Painless Lump on Knee Causes

BBC Learning English - The English We Speak / A taste of your own