be (as) flat as a pancake

slang To be physically squashed or flattened. I forgot that I had a muffin in my bag, and it's flat as a pancake now. My model of a volcano is as flat as a pancake now that you've sat on it!

Common Names:

Name	Pronounced	Usage
Pertti	PERT-tee	Finnish
Hankin	-	Medieval English
Malina (2)	mah-LEE-nah (Polish)	Bulgarian, Serbian, Polish
Keoni	-	Hawaiian
ThuẦN	-	Vietnamese
Baillie	['beili]