The Collaborative International Dictionary
To fork over
Fork \Fork\, v. t. To raise, or pitch with a fork, as hay; to dig or turn over with a fork, as the soil.
Forking the sheaves on the high-laden cart.
--Prof.
Wilson.
To fork over To fork out, to hand or pay over, as money;
to cough up. [Slang]
--G. Eliot.