As __ as a pancake
I believe the answer is:
flat
(Other definitions for flat that I've seen before include "lacking in taste" , "Personal residence" , "Puncture" , "Small residence - lacking sparkle" , "Lacking interest" .)
I believe the answer is:
flat
(Other definitions for flat that I've seen before include "lacking in taste" , "Personal residence" , "Puncture" , "Small residence - lacking sparkle" , "Lacking interest" .)