strewth
/struːθ
/(also struth)
exclamation British informal
Used to express surprise or dismay.He's maybe just gone down the wrong road, and, God strewth, we've all done that from time to time....
- Forget ‘strewth ‘and ‘fuller than a seaside dunny on Boxing Day‘.
- The newspapers in Australia use slang words and phrases like ‘strewth’ and ‘that's a crock’ in their editorials.
Origin
Late 19th century: contraction of God's truth.