The handles located in a vehicle that you grasp, usually while proclaiming "Holy SHIT!" at the top of your lungs. Whether or not there is actually any impending danger is irrelevant.

See Oh shit handle or oh shit bar for slightly different examples.
"Holy SHIT did you see that guy?? I had to go for the holy shit grip to support me in my moment of disbelief!"
by Scott-tron 9001 December 10, 2006
Get the Holy Shit Grip mug.