Green’s Dictionary of Slang

sloppy Joe n.

(US)

1. [1940s+] (also sloppy) a loose, floppy sweater.

2. [1940s+] (also sloppy joe sandwich) a multi-decked sandwich (the fillings ooze out when eating it).

3. [1940s+] a slovenly, inefficient person.

4. [1960s+] a type of hamburger in which the meat filling is diluted to a form of sauce.

5. [1960s] (S.Afr.) a design of shoe favoured by S. Afr. ’teddy girls’.