Are you a rare steak? Because I'd still eat you bloody.

Is that a mirror in your pocket? Because I think I see myself in your pants ;P

Worst one I have heard someone use on me has to be: You are as sweet as sugar water

Can I read your t-shirt in braille?

Approach the person in question.

You: What the difference between a penguin and a polar bear?

Her/Him: dunno

You: polar bears break the ice, hi my names... 

Its more of a conversation humor type line for the nervous people who cant just approach someone and make conversion. 

do you know how much a polar bear weighs?

ummm no

enough to break the ice, now that ive got your attention, touch my shirt collar.

do you know what the shirt is made from?

ummm no

boyfriend material.

My favourite was always "you smell brilliant!"

I can count on no hands how often it worked, but it made me laugh every time, bit of an in-joke among my friends to be fair

Are you a parking ticket? Because you have FINE written all over you!

Are you a bank loan? Because you've got my interest!

Or maybe even worse..

My love for you is like diarrhea, I just can't hold it in.

^ I don't think that would work for a first date though!

Hey beautiful... I need a partner to have a shot of tequila with...

offers lemon and salt

I have a bad back... mind if I lick it off you?

sooooooo many

'is that a ladder in your stocking or the stairway to heaven?'

'get your coat, you've pulled'

etc

I can't remember where 14 year old me heard it, but it absolutely will remain the best of them all. 

You may my heart race like a fat man chasing after a jelly donut. 

I can almost guarantee 14 year old you heard it on here. Creepy fat dudes are a bit of a normal thing around here.

I don't really know any lines, although one that was popular around where I live for a while was - Nice shoes, wanna fuck?

It worked more than you'd think :S

Damn you looking sexy, come here right quick.

winks eye and shows her my big credit stash. (Had you thinking something else huh?)

The only one that i fell for with my ex husband was. 

"do you know how to kiss?"

My answer was like an idiot as i was no

have you got a plaster ? beacuse ive cut my knee falling for you 

Aside from being sexy, what do you do for a living? (omg, that is bad)

If you were a chicken, you’d be impeccable. (i would run way)

Why do you need pick up lines when you have roofies? When you have a hammer? When you have a shovel after you pickup the body