jam ‧ my /ˈdʒæmi/ BrE AmE adjective British English
[ Date: 1800-1900 ; Origin: money for jam ; ⇨ ↑ money ]
1 . [only before noun] informal lucky – used especially when someone has got something good without having to use any special effort or skill:
The jammy devil won £1,000.
2 . covered in JAM, or like jam