Cracking Egg Yolks

Listen up, buttercup! This joke is yolking around! Get it? YOLK! The person is asking if their "egg yolks" are so good that they make you "crack up," which means laugh, but it's also a play on the word "crack" like you do to an egg. If you don't laugh, they'll "scramble," like scrambling eggs, which is another egg pun. If I have to tell you more facts about yourself, I'm coming over there and stealing your picnic basket.