From 男(おとこ) (otoko) + 連(つ)れ (tsure, “連(れん)用(よう)形(けい) (ren'yōkei, “stem or continuative form”) of the verb 連(つ)れる (tsureru).”).
おとこづれ • (otokozure) ←おとこづれ (otokodure)?