The sound of it is funny; throck! Like choking on a fishbone. Or like hitting someone upside his head, more solidly than a thwack but not as solid as a thump.
There is a town and county in Texas called Throckmorton.
And I believe there's some castle or family or both in England called Throgmorton, which is even funnier.
Before you criticize a man, walk a mile in his shoes. That way, when you criticize him, you're a mile away and you have his shoes!
Steve Martin