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A huge, incredibly large penis. Also used as an offensive term for the word "dick"
Jaime: Josh has a dangger!
Steph: Ew! Too much information dude!

Marii: Miguel, you're such a dangger!
by SantiJaime January 09, 2009
The wrath of an Angry Dan. FYI, an Excitable Dan is often confused for an Angry Dan (and their loud conversations for Dangger) even when no genuine rage is involved.
Now's not a good time to ask him that unless you want some dangger!
by Beard36 May 30, 2011