Someone may badly edit a picture and draweyes mouth and teeth over it to show that the subject is being eaten. They would then write omnomnomnom on the picture.
The science that deals with the objective examination & evaluation of all knowledge known to man.
What does James do anyway?
He's an omniologist.
Whaaaaat?
He studies the factual & philosophical nature of all theories of origin & their effect on man.
...Word?
When something is both delicious (om nom) and spectacular.
This word can be used in a broad number of situations (as shown in a couple of examples found below)
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.