lie through one's teeth

to say something completely untrue
دروغ بافتن
She was obviously lying through her teeth

مثل سگ یا ریگ دروغ گفتن/ مادر دروغگو باکره اس/ دروغ محض گفتن
SYNONYM= to lie like a rug
e. g. : I hate it when people lie through their teeth

دروغ شاخ دار