straight jacket

Did you mean straitjacket?

straitjacket noun A jacket-like garment with very long sleeves which can be secured in place, thus preventing the wearer from m… See the full entry

Listed on Wiktionary as a misspelling, not a word of its own.

Noun

1. 1
   Alternative form of straightjacket.
2. 2
   Misspelling of straitjacket.