smashup

noun

smash·​up ˈsmash-ˌəp 

1

: a collision between vehicles

2

: a complete collapse

Synonyms of smashup

• collision
• crash

Examples of smashup in a Sentence

three cars were involved in a smashup on my street last night

Recent Examples on the Web

The subway smashup took place in the early morning hours of October 24, between the Ave. — Evan Simko-Bednarski, New York Daily News, 2 Nov. 2026

Predicted in the 1970s by NASA physicist Donald Kessler, this chain of orbital smashups could make the space around Earth unusable and unsafe. — Tereza Pultarova, Space.com, 20 Oct. 2026

Lucky for astronomers, the upcoming smashup will occur on the moon’s near side, packing the equivalent energy of three tons of TNT. — Marcia Dunn, Fortune, 1 Aug. 2026

Subsequent studies have cast doubt on this supposedly inevitable smashup. — Phil Plait, Scientific American, 22 May 2026

Word History

First Known Use

1856, in the meaning defined at sense 1

Rhymes for smashup

• backup
• blowup
• breakup
• buildup
• checkup
• cleanup
• holdup
• hookup
• lineup
• lockup
• makeup
• markup

Kids Definition

smashup

noun

smash·​up ˈsmash-ˌəp 

1

: a complete collapse

2

: a destructive collision of motor vehicles