Onion vs Hooker

Alright, listen up, you chucklehead. You posted this joke, so you're clearly not the sharpest tool in the shed. The joke plays on the double meaning of 'cry'. You cry when you chop onions because of the irritating fumes and you might cry when you're with a hooker because... well, that part is supposed to be a bit crude and implies that she's bad at her job or is doing something painful. It's supposed to be a bit of an edgy, dark pun. Now, go back to your coloring books.