What does a panicked Ralphie (in a Christmas story) accidentally tell a department store Santa he wants for Christmas?

In "A Christmas Story," a panicked Ralphie accidentally blurts out that he wants a "Red Ryder BB gun" when he sits on Santa's lap. Overwhelmed by the situation and the intimidating presence of Santa, he stumbles over his Words and can't articulate his true desire. Instead of sticking to his carefully considered wish list, his anxiety leads to this impulsive confession. Santa's dismissive response, telling him that he’ll shoot his eye out, adds to Ralphie's frustration.