I looked up "Leprechaun Jokes"
Scrolled down and found these pick up lines..
Some of the worst/funniest I've ever seen. WOW St Patrick's Day Pick Up Lines
Are you from Ireland? Cause when I look at you my penis is Dublin.
"You look magically delicious, and I just happen to be a cereal adulterer."
"Tip o' the Trojan to ye!"
"If you don't sleep with me, the leprechauns have already won."
"How'd you like to help put the Irish Spring back into me shillelagh?"
"Well, lass, we're the only ones still standing. How about it?"
"Lassie, it's your ancestral duty to drive the snake out of my pants!"
"You've already had six Guinness draughts? Brilliant!"
I don't have four leaves, but if you pluck me, I'll give you luck!
Well you caught me lassie! Now I can grant ye one wish, as long as it involves tongue!