Acting outwardly stupid or nervous
Smokin da gloop pack.
Friend: Hey man, you seen Nathan?
Friend 2: Nah man, he's been off the gloop pack recently.
Friend: My the Lord watch over his soul.
Gloop is a picture of an animal (usually either a dog or a cat) whose nose is too close to the camera.
"I posted some gloop pictures of my cat yesterday and they got lots of likes"
When you take too many prescriptions painkillers and have diarrhea similar to shitting hot tar for several hours
A: Man I had a bad gloop last night after taking my dad's pain pills
B: Dude how are you not dead