STEP 1: STRUCTURE AND POSE

First of all, you must decide on a pose for your character. Use the basic structure of circles and lines to do this, so you will have an idea of how it might look like. The pose I use here is a simple one.

The male body as you can see in the drawing, is a lot wider in the shoulders, and has narrow hips. I use a triangle based structure for the body, which is really helpful.

STEP 2: DEFINE LINES

The next step is to begin to define the body lines.

You can begin drawing the face features, giving some shape to his chest, arms and legs. The male chest is broad, so you will like to draw a subtle V-shaped torso. The arms are a bit muscular, and so the legs. The hips are almost of the same size as the waist.

What you can do next is try to draw some clothing, you don't need to draw the entire naked body to do this.

STEP 3: FINAL DEFINITION

After defining the basic figure of the male body, I proceed to add a few more details. I draw some hair, muscle lines (especially in his chest and abs) and hands and feet. Yeah, I know what you are thinking now... why did I have to put him some underwear? XD

Now you got your male body ready! I truly recommend you also make studies from real male bodies, you'll see how your anatomy understanding improves little by little ^_^

If you want, you may ink it later.