薄情的娘们儿寡淡的爷们儿
[bó qíng de niáng men ér guă dàn de yé men ér]
'Unfeeling Women, Lukewarm Men.' This somewhat pejorative nickname comments harshly on those lacking passion or emotional investment within a relationship context — indicating coldness and detachment among partners, which results in unsatisfying interactions or unions that lack warmth.