Two kids in a trench coat walk into a bar

Two kids in a trench coat walk into a bar trying to get served and the bartender doesnt notice and serves them a beer.

The bartender then makes his way to the other end of the bar where two regulars are having a heated debate. One regular says "my dick is so big my wife calls it 'knowledge' cause knowledge is power" and the other responds "oh yeah, well my dick is so big my wife calls it 'the machine' cause it just won't stop"

And the bartender says "that's nothing, that weird guy who just walked in keeps giving his dick sips of his beer and calls it 'kevin' "