1. Purchasing and consuming a large meal from McDonalds, at least a large double quarter pounder mcvalue meal or equivalent.
2. A well prepared and lengthy session of masturbation i.e. lights dimmed, lube, a high quality yet filthy porno.
3. A nap in a large comfy bed lasting at least 2 hours.
Side effects include extreme relaxation and feelings of contentment. Mc fap naps should be used sparingly, so as not to diminish the pleasurable effects of the mc fap nap (too much of a good thing). One should also be careful not to overdose on the awesomeness one experiences whilst engaging in this activity, as such a mistake may prove fatal.