system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What is that hiccup like thing I feel after eating a big meal?
gpt
Irritation of your diaphragm, which is a muscle under your lungs that allows a good ventilation (by allowing your lungs to expand when inhaling and decrease when exhaling), is a known cause of hiccups. After a big meal, your stomach is full and may irritate your diaphragm. Ingestion of air may also be a factor.