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.
Eating a girl's pussy like the cookie monster. sticking your face in a vagina and making that 'omnomnomnom' noise and making her feel good. it is very enjoyable, for both sides, pussy tastes good, we all know, but here is a word that you can have fun with with your partner.
baby, i'm gonna Omnomnomnomnom your pussy tonight.
i want you to Omnomnomnomnom me you horny bastard.
oh when you Omnomnomnomnom ...ed my pussy last night it felt so good.
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.