"Pigging out," a phrase that describes the act of indulging in excessive amounts of food, can be substituted with a variety of synonyms. Some options include "stuffing your face," "overeating," "gorging," "binging," "feasting," "devouring," and "gluttonizing." These words all convey a sense of excess and lack of control. However, it's important to consider the connotations and tones of these words before using them in conversation. While some may find them humorous or lighthearted, others may interpret them as disrespectful or insensitive. Ultimately, it's important to choose appropriate language that accurately communicates your intentions without offending anyone.