Crooked as a dog's hind leg simile
Very dishonest and deceptive
Don't play cards with Tom. He's as crooked as a dog's hind leg.
I advised Mary shouldn't put her trust in Tony. He's as crooked as a dog's hind leg.
To be dishonest or deceptive and no one can believe
White lie
Ken: Yesterday I lost the watch that my girlfriend presented to me. Should I tell her this thing?
Lily: Certainly Not! Your girlfriend will be angry with you. Children and fools tell the truth.