There is nothing worst than a bad pick-up line. How about this one:
"Did it hurt?"
-What?
"When you fell from Heaven?"
-(giggle, giggle)
"Because, you're an angel."
or this one...
"How was that parking ticket last night?"
-What parking ticket?
"Because you say fine all over you."
YUCK! I mean seriously, YUCK!
What's the worst line someone has tried to pick you up with?
-If we were squirrels, would you let me bust a nut in your hole?
-You're like a championship bass, I don't know whether to mount you or eat you.
Those are probably the worst.