A kanye wee wee is when a man pulls out his penis and it switches between hard and flaccid (Kanyes bipolar)
Girl:oh wow pull down your pants
boy:*pulls down pants
Girl: oh..... what’s he doing
boy: sorry I have a kanye weewee I’m so sorry
Girl:um I have to go...
Boy:Damn it my kanye weewee ruined another possible hookup