To tell an untruth.
When your caught doing somethingred 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."
Joe: No way dude. It wasnt me.
Tom: How can I believe you after you stole all my porno's?
Joe: How about the fact we are currently standing in an airport next to a plane I just unboarded which came from Canada where I have spent the last 3 years? Is that a Devil's Alibi enough for you?
Tom: Hmm....yeah I guess so...
Joe: Oh and also I have the new HDDVDHDFDHD 9001 Nexus iOne at home you can come look for yourself
Tom: Yeah yeah I get it.
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