lie through your teeth
US /laɪ θruː jʊər tiːθ/
UK /laɪ θruː jʊər tiːθ/

1.
lügen wie gedruckt, unverfroren lügen
to tell someone something that you know is not true, often in a blatant or unashamed way
:
•
He was lying through his teeth when he said he didn't know anything about the missing money.
Er log wie gedruckt, als er sagte, er wisse nichts über das fehlende Geld.
•
You don't have to lie through your teeth to impress me.
Du musst nicht lügen wie gedruckt, um mich zu beeindrucken.