1. [mid-19C–1940s] any drink having a dense consistency, e.g. porter, cocoa, coffee.
2. [mid-19C+] (orig./mainly juv.) a fool, an ignoramus.
3. [late 19C–1910s] a thick slice of buttered bread.
4. [1990s+] (US black) one who has a muscular, well-developed physique.
[late 19C] to become very drunk.