What is the slang spelling for hell of?

There are a few slang spellings for "hell of," depending on the context and desired level of informality. Here are some common ones:

* Heaps of: This is a more casual and Australian-influenced slang term.

* A helluva: This is a shortened and more informal version, often used in phrases like "a helluva lot" or "a helluva time."

* A hell of a: This is the most common slang spelling, often used in phrases like "a hell of a lot" or "a hell of a time."

* A heck of a: This is a milder version, replacing "hell" with "heck" to avoid stronger language.

The best slang spelling depends on the context and your personal preference.