Deverbal from lash up.
lash-up (plural lash-ups)
- (informal) A crude improvisation or bodged effort.
- Synonyms: see Thesaurus:workaround
The home-made raft was a lash-up, but it floated.
2013 October 7, Euan Ferguson, “Solo: A James Bond Novel by William Boyd – review”, in The Guardian[1]:It is, in mitigation, a faintly understandable confusion, the films having become down the decades such a lash-up of stylistic tics, fashion anachronisms, "humour", believable gunplay, cartoon violence and casual sexism that it's a wonder anyone can remember the Bond of the books as opposed to the brand Bond.
