Uberaffengeil

This is a German nickname for a penis.

Americans found it, picked it up, shoved it in their pocket, smuggled it out of the country, and then held it up Simba-style to an audience saying, "LET'S USE THIS!"

Somehow it hasn't been terribly widespread yet, though.

Somehow.
Ah, why should it be (or shouldn't be - depends on your perspective)? Because, directly translated, it means 'super monkey horny.'

no Germans were harmed in the making of this definition

Keep your uberaffengeil in yo pants *cue sniggers*

This reminds me of an uberaffengeil *cue more sniggers*

You're an uberaffengeil! *choked laughter*