The phrase "shoots full of holes" means to criticize or expose the flaws of an idea, argument, or plan. Antonyms for this phrase could include "support," "validate," "confirm," "uphold," or "strengthen." These words imply that the idea, argument, or plan is strong and has been vetted properly. Other antonyms could include "seal," "fortify," "protect," "cover," or "shield," which suggest that the idea, argument or plan is secure and unassailable, with no room for criticism or holes to be poked. Using these antonyms can convey a positive tone and show a sense of unity and agreement within a group or conversation.