I only have two jokes based on pickup lines.

JOKE 1:
A rather attractive, athletic guy towards a bar. As he's entering, he sees a dude with a unibrow, missing teeth and acne leave with three gorgeous blondes. This instantly perks up the athletic guy, as he'll clearly be getting some action this evening. He ends up leaving alone. The next night he goes back. As he's entering, he sees the ugly dude leave with four chicks. Once again, athletic guy goes home empty handed. The third night this once again happens. So as he's leaving, athletic guy asks the bouncer what the deal is with Quasimodo. The bouncer tells him that the ugly dude shows up, stand in the middle of the room, and licks his eyebrow.


JOKE 2:
A native guy goes up to a dude in a bar. The native had seen this dude leave with girls on multiple occasions while he's always left with nothing. So he asks the guy his secret.
'The trick, my friend, is to go up to a girl and casually whisper 'tickle your cunt with a feather' into her ear. If she says 'what?' in a bad tone, say 'typical country weather.' If she seems to enjoy what you said, then you're gold!'

So the native guy goes up to a chick he likes, stands next to her at the bar, casually leans in, and into her ear he whispers,
'Stretch cunt with stick!'
The girl, obviously sickened, asks, 'What the fuck did you just say to me?'
The native guy, remembering his fallback, looks out the window and says,
'Looks like rain.'

If you lived in my town, you'd truly understand the humour in that.