How did the Grinch eat the glass?

In the classic Dr. Seuss story "How the Grinch Stole Christmas," the Grinch does not literally eat glass. Instead, this phrase often refers to a humorous or exaggerated expression of the Grinch's grumpy attitude and misbehavior. The story emphasizes his transformation from a bitter, Christmas-hating character to one who embraces the holiday spirit, rather than focusing on any actual act of eating glass.