Now folks, this isn't racist, you'll soon see why.
Originating from a Minneapolis magazine entitled "Life Sucks Die," circa 1995. An article was published urging people to litter. One of it's arguments for littering was that the roads were built on the backs of slaves an indegenous peoples by oppressers. Thus, litering defies the oppressor and gives a little bit of justice to those slaves. The one cited was Harriet Tubman. Adapted to mean throwing trash out of a car window. Now in known use by over 1000 childreen in Minnesota.
2."Last night I Harriet Tubman'd my milkshake by accident."
When used in the context of Beirut it is usually used in conjunction with the 50-yard line rule.
It may also be used to describe an escape from a situation requiring you to go underground (literally or figuratively).
"House Rules: both people sink a cup = balls back, ..., 50-yard line, no Harriet Tubman..."
"I built an igloo last week with an underground tunnel, just in case I had to Harriet Tubman that shit if we were attacked."