What does smash hit mean?

Understanding the Phrase "Smash Hit"

SMASH HIT COMBO - In Game [English Version] (Videoclip) | darkTunes Music Group

SMASH HIT COMBO - The Prayer - (Official video)

In the Studio Recording the 1998 Smash Hit "Too Close" by Next

SMASH HIT COMBO - Animal Nocturne (OFFICIAL VIDEO) - Chapter 1

Why ‘We Can’t Be Friends’ by Ariana Grande Became a Smash Hit 🤩📈 #arianagrande #music

SMASH HIT COMBO - Spin The Wheel (Official Video) | darkTunes Music Group

How Raye Made ‘Escapism’ a Smash Hit | The Breakdown

The Tragic Event That Inspired An Unlikely Smash Hit Song

SMASH HIT COMBO - Rise And Fall (Lyrics Video) | darkTunes Music Group

SMASH HIT COMBO - Spin The Wheel (Lyrics Video) | darkTunes Music Group

Smash Hit Japan Update 2.1.6 LINK IN COMMENTS

Smash Hits! Boyband Week

SMASH HIT COMBO - No One To Save (Lyrics Video) | darkTunes Music Group

SMASH HIT COMBO - Must Divide (Lyrics Video) | darkTunes Music Group

A BORDERLINE EMERGENCY BROADCAST ABOUT DAYGLOW’S NEW SMASH-HIT, “THEN IT ALL GOES AWAY” !! I AM BIAS

SMASH HIT COMBO - Arkham Asylum - (Official Lyric video)

Potty Mouth - Smash Hit (Official video)

SMASH HIT COMBO - DEPHASE - (Official Lyric video)