A relationship deal-breaker. A difference of likes/dislikes between a couple that is insurmountable. When Wallace (from Wallace & Gromit) discovered that Gwendoline didn’t like cheese, he called the relationship off.

A person who doesn't realize they are transgender yet, or is in denial; an undeveloped transgender person. When they realize, it's referred to as the "egg cracking."

A masochistic activity where someone places their fingers into a cheese grater and grinds their fingers into it, slicing the skin off. Then you can put it in as cheese. You can also do this with someone else's fingers for better masochism.