@liztai thanks for sharing this -- I'm a beginner, so getting insight into how the language works is great - a quick play with google translate suggests that 他妈好吃 means "bloody delicious" or similar
From a net search, I see that 他妈 is short for a pretty rude saying (not one I'll be trying to reproduce any time soon!):
https://forum.wordreference.com/threads/%E9%92%B1%E4%BB%96%E5%A6%88%E6%98%AF%E6%88%91%E7%9A%84.2256368/
For now, I'll focus on learning how to say 我会坐火车去北京 and similar 🙂