What is On The Lam?
1.
1)laying low
2)running from the feds
She broke the law, now she's on the lam.
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2.
To be running away from the authorities. This term dates back to the 1920's and was a part of urban slang.
"I
pinch ed thehooch from somedrugstore cowboy of a raggle-muffin and now imon the lam so you betterscram or ill knock you off. Kepeesh!"
See