noun
good-for-nothing man (as a partner); no-hoper
Colloquial term for a man who is useless or hopeless as a romantic partner, often used in the context of dating or relationships. Originates from a manga title combining だめ (no good) and メンズ (men).
彼女はいつもダメンズばかり好きになる。
She always falls for good-for-nothing guys.
あの人は典型的なダメンズだ。
That guy is a typical no-hoper.