Sashimi
noun
Remember how 身 can mean "animal flesh"? Well, when you stab some animal flesh and eat it raw, you're having sashimi. Yum!
さしみ
The reading is a little weird. It's double kun'yomi where the 刺す becomes stem form and gets pushed inside the kanji to become さし. The 身 is just the word 身's reading.
めっちゃお刺身が食べたい。
I really want to eat sashimi.
イカの刺身を一人前下さい。
Please give me squid sashimi for one.
刺身をスーパーで買ってきて！
Go get some sashimi from the supermarket!
会合の後、素晴らしい刺身弁当があるレストランで昼食を予定しています。
After the meeting, we plan to have lunch at a restaurant that has an excellent sashimi bento.