a lady walks into a grocery store every day around the same time and purchases one eggplant. A clerk notices this each day, and decides to ask her, "ma'am, why do you come each day just to buy one eggplant and not many at once for the days to come?" Stunned, the lady points down, and her feet were blue.

This is my favorite antijoke ever

wanna hear a joke ask me my name (say name (

There aren't that many grammatical errors. The joke is still readable and understandable, and funny. A little over use of the comma and a little underuse of the full stop, but other than that there is nothing wrong with the post. Don't try to be clever, when you're not, Mr Grammar nazi. Indeed, kudos for the joke!