Survival of the fullest.

Breakfast

What it usually means: The first meal of the day.

What it means when you're hungry: The first breakfast of the day.

Thinkstock / noblige

Sleep

What it usually means: Total relaxation of the body in order to conserve one's energy for the next day.

What it means when you're hungry: When your immense snoring drowns out the sound of your stomach growling.

Thinkstock / екатерина максименко

What it usually means: A photo-sharing app that allows users to instantly add professional-looking filters to their photos.

What it means when you're hungry: A parade of food photography that you just can't handle right now.

Instagram / Via adweek.com

What it usually means: A mathematical constant, approximately equivalent to 3.14, which is used to measure the circumference of a circle.

What it means when you're hungry: A mouth-watering baked dessert used to expand the circumference of you.

by Matthew Young via BuzzFeed - Community