Swala sio kupigwa chupa au tofari au betoo. All that huitwa "Brawls". You use the environment to your advantage. Sikuhizi kuna wanawake-wanaume, in English is what they are called "BitchNiggers" or "Pussies" or "Ladyboys" (Samahani kwa kutunia profanity/lugha chafu/lugha ya mtaani).
Watu wanaongea sana na kutishiana kwa mdomo cause they ain't real men, the act like one but they all boys. There is no honor no more in people these days!
In '80, mtu atakayekukutukana, au kukukanyaga au bump you while you where walking; you beat him up so hard that attaenda kuadisia kwa wenzake. All b'cause of defending your honor and building/maintaining your rep (other words, respect in the streets). With that kind of a respect, you are known to be more of a man and more of a fighter both in streets and in life.
Pia, the other reason, is to show up to women. Zamani, wanawake they like to see a man who defends her honor. Zamani kumpiga mwanamke ilikua ni nadra, so you hit a woman; s'one will come and hit/kill you. So, when in a club, you show off to women by being an "Alpha" male in that club by beating up s'other dude who tries to grab attention ya huyo mwanamke.
These days, women are won over by money or a type of car you drive (still existed in '80) or s'stupid ignorant shit and also, they are more of ladyboys than men.
PS: There is another meaning of a 'Ladyboy", in these case,it's not applicable.