1) A vagina shaped nipple
2) A nipple with excessive hair around it
3) Any vagina shaped object, either naturally occurring (birthmark) or artificial (patch, button, piece of clothing) that is in the proximity of a nipple.
The piece of clothing that was ripped off of Janet Jackson's breast during the halftime show of the Super Bowl was supposed to be star shaped, but I thought it was vagipplesque.

or

Justin Timberlake devaggipled Janet Jackson at the Super Bowl.
by kiltedvet March 21, 2008
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