The phrase "forking over" is commonly used to indicate that someone is giving or paying something, usually money. Antonyms for this phrase may include "receiving," "gaining," or "collecting," which imply that someone is receiving something rather than giving it away. Other antonyms may include "withholding," "refusing," or "denying," which indicate that someone is not giving or paying something. Additionally, "keeping," "retaining," or "holding onto" may be antonyms for "forking over," implying that someone is keeping what is rightfully theirs instead of giving it away.