Irony, Sarcasm, Ironic, Sarcastic
noun, な adjective, の adjective
The skin on the meat is kind of like the outer shell. It's not very nice, and people who eat only meat skin tend to use sarcasm and irony. That being said, Japanese people don't really understand sarcasm. So, maybe that's why "meat skin" means "sarcasm." Is this ironic? Now I'm not even sure.
ひにく
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
父は、皮肉な男だ。
My father is an ironic man.
先生のジョークは、皮肉なのかどうか、分からなかった。
I didn't know if my teacher's joke was ironic or not.
皮肉にも、日本のカタカナイングリッシュはアメリカ生まれの母には、とてもむずかしい。
Ironically, Japan's Katakana English is very difficult for my American-born mother.