Random Words:
1.
A penguin with epilepsy.
Simple as that.
Or, you could use it as a metaphor;
"Cor Ash, I'm shivvering like an epileptic pen..
1.
When a target comes in your gun or bomb sight.
Doolitte: Open bomb bay doors!
Rafe: Ripley, you got a target in sight?
Ripley: 37 deg..