You can wear dresses as a male character, you just can't do it from the equip screen at start of round. This process is time-consuming with no tactical advantage so you are liable to be reported and kicked/banned for leeching.
1)Place a construction site (3 slots) and use 5 construction material (1 slot each) to create a weapon rack. If two players cooperate, they'll use all 8 slots doing this.
2)Open your equipment screen mid-round, and set the armor of your choice (a dress).
3)Use the equipment chest. This is the same thing as opening/closing a gate.
4)You're a ladyman. If you didn't get killed, kicked, or banned yet.
Feel free to test it on the duel server. In battle or siege this is a bad idea and if you do it Bad Things will happen.