vibe checker

When the Vibe is going good and someone comes to throw it off,
-or-
One who may impose their Vibe over the current Vibe, regardless of group energy.

The gang was chilling but Dwight had to be a vibe checker and snitch to the boss man

gummy fish

A fish that eats gummy bears. They often swim into your face repeatedly if you are scuba diving

"Hey dude why is your face pink?"
"A gummy fish saw me"
"I'm sorry dude I'll pray for your face."
"Thanks you silly grass