rignition

The sound your car makes when you start it but then you still have your key in the start position. kind of grinding noise.

i hope he didnt hear the rignition when i started his car

Tanked

: to fail at something pretty harshly

Metaphorically, "tank sinks to the bottom of the sea.

· Man, I tanked that quiz yesterday in Fischer's class; I didn't study at all.