Meaning:
“自杀” means “suicide,” “式” means “style,” and “单身” means “single.” This term, coined by Chinese netizens, refers to the situation where singles do not want to socialize, but stay at home and fantasize about finding their soul mate.
Example:
A: 你哥哥找女朋友了吗？
Nǐ gēge zhǎo nǚpéngyou le ma？
Has your elder brother found a girlfriend?
B: 没有，他工作忙，业余时间都在打游戏。
Méiyǒu，tā gōngzuò máng，yèyú shíjiān dōu zài dǎyóuxì。
Not yet. He’s busy at work. And when he’s not working, he plays online games all the time.
A: 他这是自杀式单身啊。
Tā zhè shì zìshāshì dānshēn a。
Then he will stay hopelessly single.