Top Definition
1: Slang for large penis, derived from the words genitals and tentacle.

2: Any or all tentacles used on a female by a cephalopod, sea monster, or alien type creature for sexual or violent use, often seen in anime as tentacle porn.
1: Dagon totally owned that chick with his genticles.

2: Don't know what his problem is, the guy just can't get enough of the genticles.
by skudmuffin2k1 October 14, 2010
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