roast pork; char siu
Refers to the Chinese-style barbecued pork, often used in ramen or as a side dish.
The ramen has roast pork on top.
baseball fan; baseball nut
Internet slang, derogatory. Derived from 焼き豚 (roast pork) as a homophone pun on 野球 (baseball) and 豚 (pig). Used to mock obsessive baseball fans.
See also: サカ豚
On the internet, baseball fans are sometimes called 'yaki-buta'.
Standard spelling with okurigana.
Abbreviated kanji spelling, less common but still seen.
Compound of 焼き (grilled) and 豚 (pork). The slang sense is a homophone-based pun.