Her phony behavior was exposed when she thought no one was watching.
phony friend
Frequency:
50
%
She realized he was just a phony friend when he abandoned her in times of need.
phony personality
Frequency:
45
%
His phony personality fooled many people.
Idiomatic Expressions for phony
Phrase: phony excuse
Meaning: an excuse that is not true or believable
Usage: He came up with a phony excuse for being late, but we all knew he overslept.