Also found in: Thesaurus, Wikipedia.
1. A short, tight-fitting jacket, traditionally worn by sailors.
2. See mess jacket.
[From its resemblance to the jacket worn by an organ grinder's monkey.]
(Clothing & Fashion) a short close-fitting jacket, esp a waist-length jacket similar to a mess jacket
a close-fitting, waist-length jacket worn by men esp. as part of a uniform.