an interjection to show excitement or emphasis or lack there of. Having nothing to do with an actual male person or person of any sex. It is a word just to convey emotion. Much like "Oh Boy", "YAY!", "WOW", "Totally Tits", "Hella" or "Jesus Tits"
Dude. You have some hella tits. Want to come back to my place and i'll show you what Canadian history is all about.