サシ

Etymology 1
from 刺し, nominal form of 刺す

Noun

 * 1) the uniformly fatten of meat, especially beef.
 * 牛肉にサシが入る
 * ぎゅうにくにさしがはいる
 * gyūniku ni sashi ga hairu
 * The beef gets uniformly fattened.

Related terms

 * (しもふりにく, しもふりにく): marble beef

Etymology 2
From the word for castle, a descendant form of which appeared in Middle Korean texts as 🇨🇬. Possibly also related to 🇨🇬.

Noun

 * 1)   castle.