I'm stuffed

I'm (absolutely) stuffed! = I'm full — я наелся, в меня больше ничего не лезет (разг.)

have had one's fill (to have had enough to eat or drink) — наесться-напиться; насытиться

Example 1: No more pudding thanks, I've had my fill. (thefreedictionary.com)
Example : Don't give me any more. I've eaten masses! (OALD)

Related vocabulary:
[full as a tick]
[eat one's fill]
[have a hollow leg]
[stuff one's face]
[pig out]