What does "lash-up" mean?

A crude improvisation or bodged effort.

What is a synonym for "lash-up"?

Common synonyms include: contrivance, workaround.

noun, slang

noun, slang ·Uncommon ·College level

Noun

1
A crude improvisation or bodged effort. informal
"The home-made raft was a lash-up, but it floated."
2
any improvised arrangement for temporary use wordnet

"The home-made raft was a lash-up, but it floated."

Deverbal from lash up.