throwing a jeb

Throwing a fit, being over-excited, losing self-control.

While listening to a fetus heart which beats at a much faster rate, one would say, "you are probably matching that heartbeat, throwing a jeb like that. Calm down, everything is alright."

spider bark

To pass gas, to fart, gasses passing through the anus causing various fluttering or squealing noises

What was that sound that came from your butt and smells bad grandpa? That was a spider bark, my boy.