A "red hot minute" is a very long time, ranging from two to three or more hours, or a few months to years in between the last time you seen someone or did something.

"Red hot minute" is longer than a "hot minute". A hot minute meaning you haven't seen or done something in a long time ranging from 20-30 minutes to an hour or more.
It's been a red hot minute since I last seen you.

When are you coming back through?

It'll be a red hot minute, but I'll be through.
by SouthernSlang August 5, 2009
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