A hazug embert hamarabb utolérik, mint a sánta kutyát.
Literal Translation: They catch the man who lies sooner than the limping dog.
English Equivalent: A lie has short legs.
Meaning:
Your lies will come to light sooner than you think.
Usage:
You might use this proverb, for example, in a shady situation where you suspect that the other party is lying. It would put a bit of pressure on them.