Top Definition
1. An audible indication from a woman that the sexual advances of an older man are not welcomed.
2. The howl of a woman that is experiencing the full, sustained benefits of Viagra.
For 1: What's with that Viagroan? We always get busy on Wednesday night.
For 2: Neighbors are upset at all the Viagroaning at 8pm.
by Roll Here Eggo September 17, 2008
5 Words related to Viagroan

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