We all have our girly sides

It's true. Even though we are men a part of us is female. We are born from a woman and a man, thus we are half woman half man. It's the same for other species that crossbreed. Women have the XX chromosome, and we have the XY- X being female, Y being male.

So it's not an insult to be called a girl if you are a male!

I tried to explain this to the bullies at school but they beat me up and took my lunch money

Jeebus!  What the fuck is wrong with you people?  Having a "girly side" of some degree does NOT mean you're willing to suck some requisite length of cock.