Ways to lose body fat?

Yeah, just in case it hasn't been completely clear -

You don't get a visible 6-pack by losing fat. You get it by building muscle.

I've been down to the range of 3-4% body fat, and never had defined abs. How come? Cause I'm just skinny, there's no muscle definition to reveal. Obviously I can see and feel my abs, but they don't have the 6-pack shape cause they're much too lean.

It takes a while to build muscle if you're skinny - if you put on some weight, your body has the spare energy to devote to muscle growth. Eat more, work out more, then you get somewhere.

Thanks a lot for this. I've been hearing almost the complete opposite of this lately, where people tell me I need to focus more on losing body fat and less on ab workouts.