To tell an untruth.
When your caught doing something red handed and there is no way of explaining or getting yourself out of the situation but you try and lie anyway, this is known as using "Hitlers Alibi".
Also rhymes with "lie".
"I walked in on my girlfriend having sex with my best friend, she said she was just itchy and needed a scratch, what a hitler's alibi."
by boz o b May 8, 2010
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