Verb. Synonymous with complaining. Meeping is when someone won't stop complaining about nothing! All they do is meep, meep, meep! (Also makes an annoying sound when you say "meep, meep, meep" to exaggerate how annoying and pointless they sound.
John annoyed the crap out of me today! He wouldn't quit meeping about his ex, his school work, his job! All day it was, "meep, meep, meep, meep, meep!!"
The word is used when describing edible trash removed from a dumpster for the purpose of dining.
"People have this perception that it's gross or dirty, but as long as you can see the meep, you won't get sick. It's a real feast".