Definition
Synonym of I don't know.
Origins
Likely an ellipsis of earlier the hell if I know itself from earlier to hell if I know.
Also Said As
- I don't know
See Also
How People Actually Use It
Also known as HIIK. A common answer to every question, meaning that you don't have any fucking idea.
"- Who's that girl ? - Hell if I know !"
Source: Urban Dictionary