He told the ridiculous story with a straight face.
bold-faced lie
Frequency:
60
%
She told a bold-faced lie about her whereabouts.
outright lie
Frequency:
50
%
It was clear that he was telling an outright lie about his involvement.
bare-faced lie
Frequency:
45
%
He was caught telling a bare-faced lie to his boss.
Idiomatic Expressions for lie through your teeth
Phrase: lie through your teeth
Meaning: to tell a blatant or obvious lie without shame or guilt
Usage: He lied through his teeth about his involvement in the scandal, even though there was clear evidence against him.